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Finding the Fourth Proportional to 384,752.70, 576,472.95 and 328,328.10

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Solution

The fourth proportional to 384,752.70, 576,472.95 and 328,328.10 is: 491,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,752.70 : 576,472.95 = 328,328.10 : x
  2. Step 2: Convert to fraction form
    384,752.70/576,472.95 = 328,328.10/x
  3. Step 3: Cross multiply
    384,752.70x = 576,472.95 × 328,328.10
  4. Step 4: Simplify right side
    384,752.70x = 189,272,268,374.90
  5. Step 5: Solve for x
    x = 189,272,268,374.90/384,752.70
  6. Step 6: Final answer
    x = 491,932.27

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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.