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Finding the Fourth Proportional to 672.93, 1,010.25 and 537.66

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Solution

The fourth proportional to 672.93, 1,010.25 and 537.66 is: 807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.93 : 1,010.25 = 537.66 : x
  2. Step 2: Convert to fraction form
    672.93/1,010.25 = 537.66/x
  3. Step 3: Cross multiply
    672.93x = 1,010.25 × 537.66
  4. Step 4: Simplify right side
    672.93x = 543,171.02
  5. Step 5: Solve for x
    x = 543,171.02/672.93
  6. Step 6: Final answer
    x = 807.17

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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.