Home / 629,844.96-944,420.52-430,390.56

Finding the Fourth Proportional to 629,844.96, 944,420.52 and 430,390.56

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Solution

The fourth proportional to 629,844.96, 944,420.52 and 430,390.56 is: 645,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,844.96 : 944,420.52 = 430,390.56 : x
  2. Step 2: Convert to fraction form
    629,844.96/944,420.52 = 430,390.56/x
  3. Step 3: Cross multiply
    629,844.96x = 944,420.52 × 430,390.56
  4. Step 4: Simplify right side
    629,844.96x = 406,469,676,478.29
  5. Step 5: Solve for x
    x = 406,469,676,478.29/629,844.96
  6. Step 6: Final answer
    x = 645,348.78

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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.