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Finding the Fourth Proportional to 440,891, 608,433.90 and 239,691.32

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Solution

The fourth proportional to 440,891, 608,433.90 and 239,691.32 is: 330,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,891 : 608,433.90 = 239,691.32 : x
  2. Step 2: Convert to fraction form
    440,891/608,433.90 = 239,691.32/x
  3. Step 3: Cross multiply
    440,891x = 608,433.90 × 239,691.32
  4. Step 4: Simplify right side
    440,891x = 145,836,324,623.75
  5. Step 5: Solve for x
    x = 145,836,324,623.75/440,891
  6. Step 6: Final answer
    x = 330,776.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.