Home / 1,511,427.20-2,267,439.78-431,949.44

Finding the Fourth Proportional to 1,511,427.20, 2,267,439.78 and 431,949.44

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Solution

The fourth proportional to 1,511,427.20, 2,267,439.78 and 431,949.44 is: 648,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,427.20 : 2,267,439.78 = 431,949.44 : x
  2. Step 2: Convert to fraction form
    1,511,427.20/2,267,439.78 = 431,949.44/x
  3. Step 3: Cross multiply
    1,511,427.20x = 2,267,439.78 × 431,949.44
  4. Step 4: Simplify right side
    1,511,427.20x = 979,419,343,204.72
  5. Step 5: Solve for x
    x = 979,419,343,204.72/1,511,427.20
  6. Step 6: Final answer
    x = 648,009.61

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Double scale
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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.