Home / 1,121,947.76-1,681,675-854,827.60

Finding the Fourth Proportional to 1,121,947.76, 1,681,675 and 854,827.60

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Solution

The fourth proportional to 1,121,947.76, 1,681,675 and 854,827.60 is: 1,281,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,947.76 : 1,681,675 = 854,827.60 : x
  2. Step 2: Convert to fraction form
    1,121,947.76/1,681,675 = 854,827.60/x
  3. Step 3: Cross multiply
    1,121,947.76x = 1,681,675 × 854,827.60
  4. Step 4: Simplify right side
    1,121,947.76x = 1,437,542,204,230
  5. Step 5: Solve for x
    x = 1,437,542,204,230/1,121,947.76
  6. Step 6: Final answer
    x = 1,281,291.57

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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.