Home / 721,642.72-1,082,380.86-189,206.02

Finding the Fourth Proportional to 721,642.72, 1,082,380.86 and 189,206.02

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Solution

The fourth proportional to 721,642.72, 1,082,380.86 and 189,206.02 is: 283,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,642.72 : 1,082,380.86 = 189,206.02 : x
  2. Step 2: Convert to fraction form
    721,642.72/1,082,380.86 = 189,206.02/x
  3. Step 3: Cross multiply
    721,642.72x = 1,082,380.86 × 189,206.02
  4. Step 4: Simplify right side
    721,642.72x = 204,792,974,644.78
  5. Step 5: Solve for x
    x = 204,792,974,644.78/721,642.72
  6. Step 6: Final answer
    x = 283,787.21

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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.