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Finding the Fourth Proportional to 539,735.52, 808,520.40 and 495,642.72

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Solution

The fourth proportional to 539,735.52, 808,520.40 and 495,642.72 is: 742,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,735.52 : 808,520.40 = 495,642.72 : x
  2. Step 2: Convert to fraction form
    539,735.52/808,520.40 = 495,642.72/x
  3. Step 3: Cross multiply
    539,735.52x = 808,520.40 × 495,642.72
  4. Step 4: Simplify right side
    539,735.52x = 400,737,250,231.49
  5. Step 5: Solve for x
    x = 400,737,250,231.49/539,735.52
  6. Step 6: Final answer
    x = 742,469.66

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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.