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Finding the Fourth Proportional to 508,901.40, 763,352.10 and 284,952.60

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Solution

The fourth proportional to 508,901.40, 763,352.10 and 284,952.60 is: 427,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,901.40 : 763,352.10 = 284,952.60 : x
  2. Step 2: Convert to fraction form
    508,901.40/763,352.10 = 284,952.60/x
  3. Step 3: Cross multiply
    508,901.40x = 763,352.10 × 284,952.60
  4. Step 4: Simplify right side
    508,901.40x = 217,519,165,610.46
  5. Step 5: Solve for x
    x = 217,519,165,610.46/508,901.40
  6. Step 6: Final answer
    x = 427,428.90

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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.