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Finding the Fourth Proportional to 440,419.64, 660,628.38 and 124,876.76

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Solution

The fourth proportional to 440,419.64, 660,628.38 and 124,876.76 is: 187,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,419.64 : 660,628.38 = 124,876.76 : x
  2. Step 2: Convert to fraction form
    440,419.64/660,628.38 = 124,876.76/x
  3. Step 3: Cross multiply
    440,419.64x = 660,628.38 × 124,876.76
  4. Step 4: Simplify right side
    440,419.64x = 82,497,131,658.45
  5. Step 5: Solve for x
    x = 82,497,131,658.45/440,419.64
  6. Step 6: Final answer
    x = 187,314.83

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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.