Home / 834,081.30-1,251,121.68-721,426.64

Finding the Fourth Proportional to 834,081.30, 1,251,121.68 and 721,426.64

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Solution

The fourth proportional to 834,081.30, 1,251,121.68 and 721,426.64 is: 1,082,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,081.30 : 1,251,121.68 = 721,426.64 : x
  2. Step 2: Convert to fraction form
    834,081.30/1,251,121.68 = 721,426.64/x
  3. Step 3: Cross multiply
    834,081.30x = 1,251,121.68 × 721,426.64
  4. Step 4: Simplify right side
    834,081.30x = 902,592,503,577.95
  5. Step 5: Solve for x
    x = 902,592,503,577.95/834,081.30
  6. Step 6: Final answer
    x = 1,082,139.72

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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.