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Finding the Fourth Proportional to 576,909.16, 865,468.31 and 288,871.00

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Solution

The fourth proportional to 576,909.16, 865,468.31 and 288,871.00 is: 433,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,909.16 : 865,468.31 = 288,871.00 : x
  2. Step 2: Convert to fraction form
    576,909.16/865,468.31 = 288,871.00/x
  3. Step 3: Cross multiply
    576,909.16x = 865,468.31 × 288,871.00
  4. Step 4: Simplify right side
    576,909.16x = 250,008,692,569.98
  5. Step 5: Solve for x
    x = 250,008,692,569.98/576,909.16
  6. Step 6: Final answer
    x = 433,358.86

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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.