Home / 726,492,036.70-1,089,738,055.05-508,388,650.30

Finding the Fourth Proportional to 726,492,036.70, 1,089,738,055.05 and 508,388,650.30

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Solution

The fourth proportional to 726,492,036.70, 1,089,738,055.05 and 508,388,650.30 is: 762,582,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,036.70 : 1,089,738,055.05 = 508,388,650.30 : x
  2. Step 2: Convert to fraction form
    726,492,036.70/1,089,738,055.05 = 508,388,650.30/x
  3. Step 3: Cross multiply
    726,492,036.70x = 1,089,738,055.05 × 508,388,650.30
  4. Step 4: Simplify right side
    726,492,036.70x = 554,010,458,987,416,576
  5. Step 5: Solve for x
    x = 554,010,458,987,416,576/726,492,036.70
  6. Step 6: Final answer
    x = 762,582,975.45

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Double scale
Find fourth proportional to 726,492,037.70, 1,089,738,056.55 and 508,388,651.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.