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Finding the Fourth Proportional to 674.30, 1,010.23 and 587.90

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Solution

The fourth proportional to 674.30, 1,010.23 and 587.90 is: 880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.30 : 1,010.23 = 587.90 : x
  2. Step 2: Convert to fraction form
    674.30/1,010.23 = 587.90/x
  3. Step 3: Cross multiply
    674.30x = 1,010.23 × 587.90
  4. Step 4: Simplify right side
    674.30x = 593,914.22
  5. Step 5: Solve for x
    x = 593,914.22/674.30
  6. Step 6: Final answer
    x = 880.79

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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.