Home / 440,451.23-660,651.89-120,579.70

Finding the Fourth Proportional to 440,451.23, 660,651.89 and 120,579.70

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Solution

The fourth proportional to 440,451.23, 660,651.89 and 120,579.70 is: 180,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,451.23 : 660,651.89 = 120,579.70 : x
  2. Step 2: Convert to fraction form
    440,451.23/660,651.89 = 120,579.70/x
  3. Step 3: Cross multiply
    440,451.23x = 660,651.89 × 120,579.70
  4. Step 4: Simplify right side
    440,451.23x = 79,661,204,446.10
  5. Step 5: Solve for x
    x = 79,661,204,446.10/440,451.23
  6. Step 6: Final answer
    x = 180,862.71

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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.