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Finding the Fourth Proportional to 576,929.60, 865,394.40 and 417,497.30

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Solution

The fourth proportional to 576,929.60, 865,394.40 and 417,497.30 is: 626,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,929.60 : 865,394.40 = 417,497.30 : x
  2. Step 2: Convert to fraction form
    576,929.60/865,394.40 = 417,497.30/x
  3. Step 3: Cross multiply
    576,929.60x = 865,394.40 × 417,497.30
  4. Step 4: Simplify right side
    576,929.60x = 361,299,825,435.12
  5. Step 5: Solve for x
    x = 361,299,825,435.12/576,929.60
  6. Step 6: Final answer
    x = 626,245.95

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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.