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Finding the Fourth Proportional to 440,889, 608,431.14 and 239,689.32

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Solution

The fourth proportional to 440,889, 608,431.14 and 239,689.32 is: 330,773.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,889 : 608,431.14 = 239,689.32 : x
  2. Step 2: Convert to fraction form
    440,889/608,431.14 = 239,689.32/x
  3. Step 3: Cross multiply
    440,889x = 608,431.14 × 239,689.32
  4. Step 4: Simplify right side
    440,889x = 145,834,446,213.43
  5. Step 5: Solve for x
    x = 145,834,446,213.43/440,889
  6. Step 6: Final answer
    x = 330,773.61

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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.