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Finding the Fourth Proportional to 629,909.80, 944,922.30 and 255,855.40

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Solution

The fourth proportional to 629,909.80, 944,922.30 and 255,855.40 is: 383,806.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,909.80 : 944,922.30 = 255,855.40 : x
  2. Step 2: Convert to fraction form
    629,909.80/944,922.30 = 255,855.40/x
  3. Step 3: Cross multiply
    629,909.80x = 944,922.30 × 255,855.40
  4. Step 4: Simplify right side
    629,909.80x = 241,763,473,035.42
  5. Step 5: Solve for x
    x = 241,763,473,035.42/629,909.80
  6. Step 6: Final answer
    x = 383,806.50

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1.5x scale

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.