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Finding the Fourth Proportional to 658,892.85, 988,585.29 and 259,811.84

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Solution

The fourth proportional to 658,892.85, 988,585.29 and 259,811.84 is: 389,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,892.85 : 988,585.29 = 259,811.84 : x
  2. Step 2: Convert to fraction form
    658,892.85/988,585.29 = 259,811.84/x
  3. Step 3: Cross multiply
    658,892.85x = 988,585.29 × 259,811.84
  4. Step 4: Simplify right side
    658,892.85x = 256,846,158,248.91
  5. Step 5: Solve for x
    x = 256,846,158,248.91/658,892.85
  6. Step 6: Final answer
    x = 389,814.76

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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.