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Finding the Fourth Proportional to 658,961.73, 988,594.29 and 279,894.47

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Solution

The fourth proportional to 658,961.73, 988,594.29 and 279,894.47 is: 419,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,961.73 : 988,594.29 = 279,894.47 : x
  2. Step 2: Convert to fraction form
    658,961.73/988,594.29 = 279,894.47/x
  3. Step 3: Cross multiply
    658,961.73x = 988,594.29 × 279,894.47
  4. Step 4: Simplify right side
    658,961.73x = 276,702,069,901.61
  5. Step 5: Solve for x
    x = 276,702,069,901.61/658,961.73
  6. Step 6: Final answer
    x = 419,906.13

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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.