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Finding the Fourth Proportional to 629,493.86, 868,674.29 and 357,560.88

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Solution

The fourth proportional to 629,493.86, 868,674.29 and 357,560.88 is: 493,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,493.86 : 868,674.29 = 357,560.88 : x
  2. Step 2: Convert to fraction form
    629,493.86/868,674.29 = 357,560.88/x
  3. Step 3: Cross multiply
    629,493.86x = 868,674.29 × 357,560.88
  4. Step 4: Simplify right side
    629,493.86x = 310,603,941,777.97
  5. Step 5: Solve for x
    x = 310,603,941,777.97/629,493.86
  6. Step 6: Final answer
    x = 493,418.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.