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Finding the Fourth Proportional to 440,418.64, 660,626.88 and 124,875.76

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Solution

The fourth proportional to 440,418.64, 660,626.88 and 124,875.76 is: 187,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,418.64 : 660,626.88 = 124,875.76 : x
  2. Step 2: Convert to fraction form
    440,418.64/660,626.88 = 124,875.76/x
  3. Step 3: Cross multiply
    440,418.64x = 660,626.88 × 124,875.76
  4. Step 4: Simplify right side
    440,418.64x = 82,496,283,716.43
  5. Step 5: Solve for x
    x = 82,496,283,716.43/440,418.64
  6. Step 6: Final answer
    x = 187,313.33

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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.