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Finding the Fourth Proportional to 550,387.95, 825,581.93 and 361,431.15

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Solution

The fourth proportional to 550,387.95, 825,581.93 and 361,431.15 is: 542,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,387.95 : 825,581.93 = 361,431.15 : x
  2. Step 2: Convert to fraction form
    550,387.95/825,581.93 = 361,431.15/x
  3. Step 3: Cross multiply
    550,387.95x = 825,581.93 × 361,431.15
  4. Step 4: Simplify right side
    550,387.95x = 298,391,024,571.96
  5. Step 5: Solve for x
    x = 298,391,024,571.96/550,387.95
  6. Step 6: Final answer
    x = 542,146.73

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Similar ratio
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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.