Home / 728,562.60-1,098,449.91-715,498.92

Finding the Fourth Proportional to 728,562.60, 1,098,449.91 and 715,498.92

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Solution

The fourth proportional to 728,562.60, 1,098,449.91 and 715,498.92 is: 1,078,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,562.60 : 1,098,449.91 = 715,498.92 : x
  2. Step 2: Convert to fraction form
    728,562.60/1,098,449.91 = 715,498.92/x
  3. Step 3: Cross multiply
    728,562.60x = 1,098,449.91 × 715,498.92
  4. Step 4: Simplify right side
    728,562.60x = 785,939,724,279.10
  5. Step 5: Solve for x
    x = 785,939,724,279.10/728,562.60
  6. Step 6: Final answer
    x = 1,078,753.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.