Home / 667,045.22-1,000,265.27-287,786.61

Finding the Fourth Proportional to 667,045.22, 1,000,265.27 and 287,786.61

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Solution

The fourth proportional to 667,045.22, 1,000,265.27 and 287,786.61 is: 431,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,045.22 : 1,000,265.27 = 287,786.61 : x
  2. Step 2: Convert to fraction form
    667,045.22/1,000,265.27 = 287,786.61/x
  3. Step 3: Cross multiply
    667,045.22x = 1,000,265.27 × 287,786.61
  4. Step 4: Simplify right side
    667,045.22x = 287,862,949,715.10
  5. Step 5: Solve for x
    x = 287,862,949,715.10/667,045.22
  6. Step 6: Final answer
    x = 431,549.38

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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.