Home / 721,580.92-1,082,435.10-189,099.88

Finding the Fourth Proportional to 721,580.92, 1,082,435.10 and 189,099.88

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Solution

The fourth proportional to 721,580.92, 1,082,435.10 and 189,099.88 is: 283,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,580.92 : 1,082,435.10 = 189,099.88 : x
  2. Step 2: Convert to fraction form
    721,580.92/1,082,435.10 = 189,099.88/x
  3. Step 3: Cross multiply
    721,580.92x = 1,082,435.10 × 189,099.88
  4. Step 4: Simplify right side
    721,580.92x = 204,688,347,517.79
  5. Step 5: Solve for x
    x = 204,688,347,517.79/721,580.92
  6. Step 6: Final answer
    x = 283,666.52

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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.