Home / 721,000.91-1,081,503.72-271,601.16

Finding the Fourth Proportional to 721,000.91, 1,081,503.72 and 271,601.16

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Solution

The fourth proportional to 721,000.91, 1,081,503.72 and 271,601.16 is: 407,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,000.91 : 1,081,503.72 = 271,601.16 : x
  2. Step 2: Convert to fraction form
    721,000.91/1,081,503.72 = 271,601.16/x
  3. Step 3: Cross multiply
    721,000.91x = 1,081,503.72 × 271,601.16
  4. Step 4: Simplify right side
    721,000.91x = 293,737,664,896.32
  5. Step 5: Solve for x
    x = 293,737,664,896.32/721,000.91
  6. Step 6: Final answer
    x = 407,402.63

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Similar ratio
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1.5x scale

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.