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Finding the Fourth Proportional to 538,304.10, 807,456.15 and 509,273.70

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Solution

The fourth proportional to 538,304.10, 807,456.15 and 509,273.70 is: 763,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,304.10 : 807,456.15 = 509,273.70 : x
  2. Step 2: Convert to fraction form
    538,304.10/807,456.15 = 509,273.70/x
  3. Step 3: Cross multiply
    538,304.10x = 807,456.15 × 509,273.70
  4. Step 4: Simplify right side
    538,304.10x = 411,216,181,098.26
  5. Step 5: Solve for x
    x = 411,216,181,098.26/538,304.10
  6. Step 6: Final answer
    x = 763,910.55

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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.