Home / 876,834.20-1,315,251.30-404,442.20

Finding the Fourth Proportional to 876,834.20, 1,315,251.30 and 404,442.20

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Solution

The fourth proportional to 876,834.20, 1,315,251.30 and 404,442.20 is: 606,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,834.20 : 1,315,251.30 = 404,442.20 : x
  2. Step 2: Convert to fraction form
    876,834.20/1,315,251.30 = 404,442.20/x
  3. Step 3: Cross multiply
    876,834.20x = 1,315,251.30 × 404,442.20
  4. Step 4: Simplify right side
    876,834.20x = 531,943,129,324.86
  5. Step 5: Solve for x
    x = 531,943,129,324.86/876,834.20
  6. Step 6: Final answer
    x = 606,663.30

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Double scale
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Similar ratio
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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.