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Finding the Fourth Proportional to 629,655.60, 944,713.80 and 255,716.40

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Solution

The fourth proportional to 629,655.60, 944,713.80 and 255,716.40 is: 383,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,655.60 : 944,713.80 = 255,716.40 : x
  2. Step 2: Convert to fraction form
    629,655.60/944,713.80 = 255,716.40/x
  3. Step 3: Cross multiply
    629,655.60x = 944,713.80 × 255,716.40
  4. Step 4: Simplify right side
    629,655.60x = 241,578,811,966.32
  5. Step 5: Solve for x
    x = 241,578,811,966.32/629,655.60
  6. Step 6: Final answer
    x = 383,668.17

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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.