Home / 1,511,335.25-2,267,301.87-431,857.56

Finding the Fourth Proportional to 1,511,335.25, 2,267,301.87 and 431,857.56

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Solution

The fourth proportional to 1,511,335.25, 2,267,301.87 and 431,857.56 is: 647,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,335.25 : 2,267,301.87 = 431,857.56 : x
  2. Step 2: Convert to fraction form
    1,511,335.25/2,267,301.87 = 431,857.56/x
  3. Step 3: Cross multiply
    1,511,335.25x = 2,267,301.87 × 431,857.56
  4. Step 4: Simplify right side
    1,511,335.25x = 979,151,461,864.02
  5. Step 5: Solve for x
    x = 979,151,461,864.02/1,511,335.25
  6. Step 6: Final answer
    x = 647,871.78

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Double scale
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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.