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Finding the Fourth Proportional to 659,505.97, 988,594.35 and 259,992.10

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Solution

The fourth proportional to 659,505.97, 988,594.35 and 259,992.10 is: 389,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,505.97 : 988,594.35 = 259,992.10 : x
  2. Step 2: Convert to fraction form
    659,505.97/988,594.35 = 259,992.10/x
  3. Step 3: Cross multiply
    659,505.97x = 988,594.35 × 259,992.10
  4. Step 4: Simplify right side
    659,505.97x = 257,026,721,104.64
  5. Step 5: Solve for x
    x = 257,026,721,104.64/659,505.97
  6. Step 6: Final answer
    x = 389,726.15

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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.