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Finding the Fourth Proportional to 999.17, 1,495 and 672.94

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Solution

The fourth proportional to 999.17, 1,495 and 672.94 is: 1,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.17 : 1,495 = 672.94 : x
  2. Step 2: Convert to fraction form
    999.17/1,495 = 672.94/x
  3. Step 3: Cross multiply
    999.17x = 1,495 × 672.94
  4. Step 4: Simplify right side
    999.17x = 1,006,045.30
  5. Step 5: Solve for x
    x = 1,006,045.30/999.17
  6. Step 6: Final answer
    x = 1,006.88

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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.