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Finding the Fourth Proportional to 1,010.05, 1,512.25 and 546.17

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Solution

The fourth proportional to 1,010.05, 1,512.25 and 546.17 is: 817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.05 : 1,512.25 = 546.17 : x
  2. Step 2: Convert to fraction form
    1,010.05/1,512.25 = 546.17/x
  3. Step 3: Cross multiply
    1,010.05x = 1,512.25 × 546.17
  4. Step 4: Simplify right side
    1,010.05x = 825,935.29
  5. Step 5: Solve for x
    x = 825,935.29/1,010.05
  6. Step 6: Final answer
    x = 817.72

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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.