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Finding the Fourth Proportional to 499,447.61, 748,938.48 and 259,497

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Solution

The fourth proportional to 499,447.61, 748,938.48 and 259,497 is: 389,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,447.61 : 748,938.48 = 259,497 : x
  2. Step 2: Convert to fraction form
    499,447.61/748,938.48 = 259,497/x
  3. Step 3: Cross multiply
    499,447.61x = 748,938.48 × 259,497
  4. Step 4: Simplify right side
    499,447.61x = 194,347,288,744.56
  5. Step 5: Solve for x
    x = 194,347,288,744.56/499,447.61
  6. Step 6: Final answer
    x = 389,124.48

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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.