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Finding the Fourth Proportional to 775,715.28, 1,070,147.88 and 473,730

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Solution

The fourth proportional to 775,715.28, 1,070,147.88 and 473,730 is: 653,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,715.28 : 1,070,147.88 = 473,730 : x
  2. Step 2: Convert to fraction form
    775,715.28/1,070,147.88 = 473,730/x
  3. Step 3: Cross multiply
    775,715.28x = 1,070,147.88 × 473,730
  4. Step 4: Simplify right side
    775,715.28x = 506,961,155,192.40
  5. Step 5: Solve for x
    x = 506,961,155,192.40/775,715.28
  6. Step 6: Final answer
    x = 653,540.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.