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Finding the Fourth Proportional to 440,343.92, 607,677.72 and 239,139.92

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Solution

The fourth proportional to 440,343.92, 607,677.72 and 239,139.92 is: 330,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,343.92 : 607,677.72 = 239,139.92 : x
  2. Step 2: Convert to fraction form
    440,343.92/607,677.72 = 239,139.92/x
  3. Step 3: Cross multiply
    440,343.92x = 607,677.72 × 239,139.92
  4. Step 4: Simplify right side
    440,343.92x = 145,320,001,346.58
  5. Step 5: Solve for x
    x = 145,320,001,346.58/440,343.92
  6. Step 6: Final answer
    x = 330,014.78

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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.