Home / 1,281,405.60-1,768,471.20-737,561.76

Finding the Fourth Proportional to 1,281,405.60, 1,768,471.20 and 737,561.76

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Solution

The fourth proportional to 1,281,405.60, 1,768,471.20 and 737,561.76 is: 1,017,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,405.60 : 1,768,471.20 = 737,561.76 : x
  2. Step 2: Convert to fraction form
    1,281,405.60/1,768,471.20 = 737,561.76/x
  3. Step 3: Cross multiply
    1,281,405.60x = 1,768,471.20 × 737,561.76
  4. Step 4: Simplify right side
    1,281,405.60x = 1,304,356,730,781.31
  5. Step 5: Solve for x
    x = 1,304,356,730,781.31/1,281,405.60
  6. Step 6: Final answer
    x = 1,017,910.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.