Home / 721,587.12-1,082,484.36-222,990

Finding the Fourth Proportional to 721,587.12, 1,082,484.36 and 222,990

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Solution

The fourth proportional to 721,587.12, 1,082,484.36 and 222,990 is: 334,517.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,587.12 : 1,082,484.36 = 222,990 : x
  2. Step 2: Convert to fraction form
    721,587.12/1,082,484.36 = 222,990/x
  3. Step 3: Cross multiply
    721,587.12x = 1,082,484.36 × 222,990
  4. Step 4: Simplify right side
    721,587.12x = 241,383,187,436.40
  5. Step 5: Solve for x
    x = 241,383,187,436.40/721,587.12
  6. Step 6: Final answer
    x = 334,517.04

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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.