Home / 721,722.60-1,082,279.88-216,356.04

Finding the Fourth Proportional to 721,722.60, 1,082,279.88 and 216,356.04

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Solution

The fourth proportional to 721,722.60, 1,082,279.88 and 216,356.04 is: 324,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,722.60 : 1,082,279.88 = 216,356.04 : x
  2. Step 2: Convert to fraction form
    721,722.60/1,082,279.88 = 216,356.04/x
  3. Step 3: Cross multiply
    721,722.60x = 1,082,279.88 × 216,356.04
  4. Step 4: Simplify right side
    721,722.60x = 234,157,789,008.48
  5. Step 5: Solve for x
    x = 234,157,789,008.48/721,722.60
  6. Step 6: Final answer
    x = 324,442.92

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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.