Home / 826,276.20-1,239,414.30-448,362.60

Finding the Fourth Proportional to 826,276.20, 1,239,414.30 and 448,362.60

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Solution

The fourth proportional to 826,276.20, 1,239,414.30 and 448,362.60 is: 672,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,276.20 : 1,239,414.30 = 448,362.60 : x
  2. Step 2: Convert to fraction form
    826,276.20/1,239,414.30 = 448,362.60/x
  3. Step 3: Cross multiply
    826,276.20x = 1,239,414.30 × 448,362.60
  4. Step 4: Simplify right side
    826,276.20x = 555,707,018,025.18
  5. Step 5: Solve for x
    x = 555,707,018,025.18/826,276.20
  6. Step 6: Final answer
    x = 672,543.90

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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.