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Finding the Fourth Proportional to 630.31, 940.44 and 564.25

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Solution

The fourth proportional to 630.31, 940.44 and 564.25 is: 841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.31 : 940.44 = 564.25 : x
  2. Step 2: Convert to fraction form
    630.31/940.44 = 564.25/x
  3. Step 3: Cross multiply
    630.31x = 940.44 × 564.25
  4. Step 4: Simplify right side
    630.31x = 530,635.75
  5. Step 5: Solve for x
    x = 530,635.75/630.31
  6. Step 6: Final answer
    x = 841.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.