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Finding the Fourth Proportional to 549,419.73, 824,410.88 and 261,557.15

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Solution

The fourth proportional to 549,419.73, 824,410.88 and 261,557.15 is: 392,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,419.73 : 824,410.88 = 261,557.15 : x
  2. Step 2: Convert to fraction form
    549,419.73/824,410.88 = 261,557.15/x
  3. Step 3: Cross multiply
    549,419.73x = 824,410.88 × 261,557.15
  4. Step 4: Simplify right side
    549,419.73x = 215,630,554,771.95
  5. Step 5: Solve for x
    x = 215,630,554,771.95/549,419.73
  6. Step 6: Final answer
    x = 392,469.62

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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.