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Finding the Fourth Proportional to 630.96, 941.30 and 614.86

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Solution

The fourth proportional to 630.96, 941.30 and 614.86 is: 917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.96 : 941.30 = 614.86 : x
  2. Step 2: Convert to fraction form
    630.96/941.30 = 614.86/x
  3. Step 3: Cross multiply
    630.96x = 941.30 × 614.86
  4. Step 4: Simplify right side
    630.96x = 578,767.72
  5. Step 5: Solve for x
    x = 578,767.72/630.96
  6. Step 6: Final answer
    x = 917.28

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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.