Home / 425,578.26-638,460.75-126,082.24

Finding the Fourth Proportional to 425,578.26, 638,460.75 and 126,082.24

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Solution

The fourth proportional to 425,578.26, 638,460.75 and 126,082.24 is: 189,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,578.26 : 638,460.75 = 126,082.24 : x
  2. Step 2: Convert to fraction form
    425,578.26/638,460.75 = 126,082.24/x
  3. Step 3: Cross multiply
    425,578.26x = 638,460.75 × 126,082.24
  4. Step 4: Simplify right side
    425,578.26x = 80,498,561,512.08
  5. Step 5: Solve for x
    x = 80,498,561,512.08/425,578.26
  6. Step 6: Final answer
    x = 189,151.02

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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.