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Finding the Fourth Proportional to 539,231.90, 808,847.85 and 455,251.10

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Solution

The fourth proportional to 539,231.90, 808,847.85 and 455,251.10 is: 682,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,231.90 : 808,847.85 = 455,251.10 : x
  2. Step 2: Convert to fraction form
    539,231.90/808,847.85 = 455,251.10/x
  3. Step 3: Cross multiply
    539,231.90x = 808,847.85 × 455,251.10
  4. Step 4: Simplify right side
    539,231.90x = 368,228,873,445.14
  5. Step 5: Solve for x
    x = 368,228,873,445.14/539,231.90
  6. Step 6: Final answer
    x = 682,876.65

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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.