Home / 721,442.18-1,082,415.38-451,262.03

Finding the Fourth Proportional to 721,442.18, 1,082,415.38 and 451,262.03

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Solution

The fourth proportional to 721,442.18, 1,082,415.38 and 451,262.03 is: 677,050.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,442.18 : 1,082,415.38 = 451,262.03 : x
  2. Step 2: Convert to fraction form
    721,442.18/1,082,415.38 = 451,262.03/x
  3. Step 3: Cross multiply
    721,442.18x = 1,082,415.38 × 451,262.03
  4. Step 4: Simplify right side
    721,442.18x = 488,452,954,013.63
  5. Step 5: Solve for x
    x = 488,452,954,013.63/721,442.18
  6. Step 6: Final answer
    x = 677,050.73

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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.