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Finding the Fourth Proportional to 895.59, 1,238.49 and 674.46

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Solution

The fourth proportional to 895.59, 1,238.49 and 674.46 is: 932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.59 : 1,238.49 = 674.46 : x
  2. Step 2: Convert to fraction form
    895.59/1,238.49 = 674.46/x
  3. Step 3: Cross multiply
    895.59x = 1,238.49 × 674.46
  4. Step 4: Simplify right side
    895.59x = 835,311.97
  5. Step 5: Solve for x
    x = 835,311.97/895.59
  6. Step 6: Final answer
    x = 932.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.