Home / 1,120,974.82-1,681,415.19-521,729.86

Finding the Fourth Proportional to 1,120,974.82, 1,681,415.19 and 521,729.86

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Solution

The fourth proportional to 1,120,974.82, 1,681,415.19 and 521,729.86 is: 782,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,974.82 : 1,681,415.19 = 521,729.86 : x
  2. Step 2: Convert to fraction form
    1,120,974.82/1,681,415.19 = 521,729.86/x
  3. Step 3: Cross multiply
    1,120,974.82x = 1,681,415.19 × 521,729.86
  4. Step 4: Simplify right side
    1,120,974.82x = 877,244,511,680.57
  5. Step 5: Solve for x
    x = 877,244,511,680.57/1,120,974.82
  6. Step 6: Final answer
    x = 782,572.90

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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.