Home / 1,098,511.10-1,645,001.85-722,498.30

Finding the Fourth Proportional to 1,098,511.10, 1,645,001.85 and 722,498.30

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Solution

The fourth proportional to 1,098,511.10, 1,645,001.85 and 722,498.30 is: 1,081,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,511.10 : 1,645,001.85 = 722,498.30 : x
  2. Step 2: Convert to fraction form
    1,098,511.10/1,645,001.85 = 722,498.30/x
  3. Step 3: Cross multiply
    1,098,511.10x = 1,645,001.85 × 722,498.30
  4. Step 4: Simplify right side
    1,098,511.10x = 1,188,511,040,121.86
  5. Step 5: Solve for x
    x = 1,188,511,040,121.86/1,098,511.10
  6. Step 6: Final answer
    x = 1,081,929.02

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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.