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Finding the Fourth Proportional to 629,640.60, 944,691.30 and 255,701.40

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Solution

The fourth proportional to 629,640.60, 944,691.30 and 255,701.40 is: 383,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,640.60 : 944,691.30 = 255,701.40 : x
  2. Step 2: Convert to fraction form
    629,640.60/944,691.30 = 255,701.40/x
  3. Step 3: Cross multiply
    629,640.60x = 944,691.30 × 255,701.40
  4. Step 4: Simplify right side
    629,640.60x = 241,558,887,977.82
  5. Step 5: Solve for x
    x = 241,558,887,977.82/629,640.60
  6. Step 6: Final answer
    x = 383,645.67

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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.