Home / 780,048.40-1,170,072.60-360,144.40

Finding the Fourth Proportional to 780,048.40, 1,170,072.60 and 360,144.40

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Solution

The fourth proportional to 780,048.40, 1,170,072.60 and 360,144.40 is: 540,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,048.40 : 1,170,072.60 = 360,144.40 : x
  2. Step 2: Convert to fraction form
    780,048.40/1,170,072.60 = 360,144.40/x
  3. Step 3: Cross multiply
    780,048.40x = 1,170,072.60 × 360,144.40
  4. Step 4: Simplify right side
    780,048.40x = 421,395,094,483.44
  5. Step 5: Solve for x
    x = 421,395,094,483.44/780,048.40
  6. Step 6: Final answer
    x = 540,216.60

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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.