Home / 738,155.40-1,107,233.10-472,216.20

Finding the Fourth Proportional to 738,155.40, 1,107,233.10 and 472,216.20

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Solution

The fourth proportional to 738,155.40, 1,107,233.10 and 472,216.20 is: 708,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,155.40 : 1,107,233.10 = 472,216.20 : x
  2. Step 2: Convert to fraction form
    738,155.40/1,107,233.10 = 472,216.20/x
  3. Step 3: Cross multiply
    738,155.40x = 1,107,233.10 × 472,216.20
  4. Step 4: Simplify right side
    738,155.40x = 522,853,406,996.22
  5. Step 5: Solve for x
    x = 522,853,406,996.22/738,155.40
  6. Step 6: Final answer
    x = 708,324.30

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Double scale
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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.