Home / 721,327.57-1,081,692.11-265,944.69

Finding the Fourth Proportional to 721,327.57, 1,081,692.11 and 265,944.69

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Solution

The fourth proportional to 721,327.57, 1,081,692.11 and 265,944.69 is: 398,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,327.57 : 1,081,692.11 = 265,944.69 : x
  2. Step 2: Convert to fraction form
    721,327.57/1,081,692.11 = 265,944.69/x
  3. Step 3: Cross multiply
    721,327.57x = 1,081,692.11 × 265,944.69
  4. Step 4: Simplify right side
    721,327.57x = 287,670,273,534.26
  5. Step 5: Solve for x
    x = 287,670,273,534.26/721,327.57
  6. Step 6: Final answer
    x = 398,806.71

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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.