Home / 729,066.90-1,093,600.35-408,890.10

Finding the Fourth Proportional to 729,066.90, 1,093,600.35 and 408,890.10

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Solution

The fourth proportional to 729,066.90, 1,093,600.35 and 408,890.10 is: 613,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,066.90 : 1,093,600.35 = 408,890.10 : x
  2. Step 2: Convert to fraction form
    729,066.90/1,093,600.35 = 408,890.10/x
  3. Step 3: Cross multiply
    729,066.90x = 1,093,600.35 × 408,890.10
  4. Step 4: Simplify right side
    729,066.90x = 447,162,356,471.54
  5. Step 5: Solve for x
    x = 447,162,356,471.54/729,066.90
  6. Step 6: Final answer
    x = 613,335.15

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Double scale
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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.