Home / 792,355.20-1,187,910.72-542,279.04

Finding the Fourth Proportional to 792,355.20, 1,187,910.72 and 542,279.04

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Solution

The fourth proportional to 792,355.20, 1,187,910.72 and 542,279.04 is: 812,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,355.20 : 1,187,910.72 = 542,279.04 : x
  2. Step 2: Convert to fraction form
    792,355.20/1,187,910.72 = 542,279.04/x
  3. Step 3: Cross multiply
    792,355.20x = 1,187,910.72 × 542,279.04
  4. Step 4: Simplify right side
    792,355.20x = 644,179,084,847.31
  5. Step 5: Solve for x
    x = 644,179,084,847.31/792,355.20
  6. Step 6: Final answer
    x = 812,992.82

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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.