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Finding the Fourth Proportional to 539,097.80, 808,646.70 and 381,633.80

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Solution

The fourth proportional to 539,097.80, 808,646.70 and 381,633.80 is: 572,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,097.80 : 808,646.70 = 381,633.80 : x
  2. Step 2: Convert to fraction form
    539,097.80/808,646.70 = 381,633.80/x
  3. Step 3: Cross multiply
    539,097.80x = 808,646.70 × 381,633.80
  4. Step 4: Simplify right side
    539,097.80x = 308,606,912,978.46
  5. Step 5: Solve for x
    x = 308,606,912,978.46/539,097.80
  6. Step 6: Final answer
    x = 572,450.70

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Similar ratio
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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.