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Finding the Fourth Proportional to 630.36, 866.81 and 547.32

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Solution

The fourth proportional to 630.36, 866.81 and 547.32 is: 752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.36 : 866.81 = 547.32 : x
  2. Step 2: Convert to fraction form
    630.36/866.81 = 547.32/x
  3. Step 3: Cross multiply
    630.36x = 866.81 × 547.32
  4. Step 4: Simplify right side
    630.36x = 474,415.38
  5. Step 5: Solve for x
    x = 474,415.38/630.36
  6. Step 6: Final answer
    x = 752.61

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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.