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Finding the Fourth Proportional to 539,082.90, 808,624.35 and 371,121.30

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Solution

The fourth proportional to 539,082.90, 808,624.35 and 371,121.30 is: 556,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,082.90 : 808,624.35 = 371,121.30 : x
  2. Step 2: Convert to fraction form
    539,082.90/808,624.35 = 371,121.30/x
  3. Step 3: Cross multiply
    539,082.90x = 808,624.35 × 371,121.30
  4. Step 4: Simplify right side
    539,082.90x = 300,097,719,983.66
  5. Step 5: Solve for x
    x = 300,097,719,983.66/539,082.90
  6. Step 6: Final answer
    x = 556,681.95

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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.