Home / 834,074.48-1,251,111.62-721,419.89

Finding the Fourth Proportional to 834,074.48, 1,251,111.62 and 721,419.89

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Solution

The fourth proportional to 834,074.48, 1,251,111.62 and 721,419.89 is: 1,082,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,074.48 : 1,251,111.62 = 721,419.89 : x
  2. Step 2: Convert to fraction form
    834,074.48/1,251,111.62 = 721,419.89/x
  3. Step 3: Cross multiply
    834,074.48x = 1,251,111.62 × 721,419.89
  4. Step 4: Simplify right side
    834,074.48x = 902,576,802,826.11
  5. Step 5: Solve for x
    x = 902,576,802,826.11/834,074.48
  6. Step 6: Final answer
    x = 1,082,129.74

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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.