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Finding the Fourth Proportional to 576,927.60, 865,391.40 and 417,495.30

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Solution

The fourth proportional to 576,927.60, 865,391.40 and 417,495.30 is: 626,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,927.60 : 865,391.40 = 417,495.30 : x
  2. Step 2: Convert to fraction form
    576,927.60/865,391.40 = 417,495.30/x
  3. Step 3: Cross multiply
    576,927.60x = 865,391.40 × 417,495.30
  4. Step 4: Simplify right side
    576,927.60x = 361,296,842,160.42
  5. Step 5: Solve for x
    x = 361,296,842,160.42/576,927.60
  6. Step 6: Final answer
    x = 626,242.95

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Similar ratio
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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.