Home / 1,089,059.80-1,631,256.90-711,146.20

Finding the Fourth Proportional to 1,089,059.80, 1,631,256.90 and 711,146.20

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Solution

The fourth proportional to 1,089,059.80, 1,631,256.90 and 711,146.20 is: 1,065,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,059.80 : 1,631,256.90 = 711,146.20 : x
  2. Step 2: Convert to fraction form
    1,089,059.80/1,631,256.90 = 711,146.20/x
  3. Step 3: Cross multiply
    1,089,059.80x = 1,631,256.90 × 711,146.20
  4. Step 4: Simplify right side
    1,089,059.80x = 1,160,062,145,658.78
  5. Step 5: Solve for x
    x = 1,160,062,145,658.78/1,089,059.80
  6. Step 6: Final answer
    x = 1,065,196.00

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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.