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Finding the Fourth Proportional to 539,528.90, 809,293.35 and 371,567.30

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Solution

The fourth proportional to 539,528.90, 809,293.35 and 371,567.30 is: 557,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,528.90 : 809,293.35 = 371,567.30 : x
  2. Step 2: Convert to fraction form
    539,528.90/809,293.35 = 371,567.30/x
  3. Step 3: Cross multiply
    539,528.90x = 809,293.35 × 371,567.30
  4. Step 4: Simplify right side
    539,528.90x = 300,706,944,967.46
  5. Step 5: Solve for x
    x = 300,706,944,967.46/539,528.90
  6. Step 6: Final answer
    x = 557,350.95

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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.