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Finding the Fourth Proportional to 629,788.80, 944,901.90 and 275,057.40

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Solution

The fourth proportional to 629,788.80, 944,901.90 and 275,057.40 is: 412,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,788.80 : 944,901.90 = 275,057.40 : x
  2. Step 2: Convert to fraction form
    629,788.80/944,901.90 = 275,057.40/x
  3. Step 3: Cross multiply
    629,788.80x = 944,901.90 × 275,057.40
  4. Step 4: Simplify right side
    629,788.80x = 259,902,259,869.06
  5. Step 5: Solve for x
    x = 259,902,259,869.06/629,788.80
  6. Step 6: Final answer
    x = 412,681.62

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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.