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Finding the Fourth Proportional to 630.24, 941.40 and 558.56

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Solution

The fourth proportional to 630.24, 941.40 and 558.56 is: 834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.24 : 941.40 = 558.56 : x
  2. Step 2: Convert to fraction form
    630.24/941.40 = 558.56/x
  3. Step 3: Cross multiply
    630.24x = 941.40 × 558.56
  4. Step 4: Simplify right side
    630.24x = 525,828.38
  5. Step 5: Solve for x
    x = 525,828.38/630.24
  6. Step 6: Final answer
    x = 834.33

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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.