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Finding the Fourth Proportional to 630.59, 941.72 and 538.55

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Solution

The fourth proportional to 630.59, 941.72 and 538.55 is: 804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.59 : 941.72 = 538.55 : x
  2. Step 2: Convert to fraction form
    630.59/941.72 = 538.55/x
  3. Step 3: Cross multiply
    630.59x = 941.72 × 538.55
  4. Step 4: Simplify right side
    630.59x = 507,155.90
  5. Step 5: Solve for x
    x = 507,155.90/630.59
  6. Step 6: Final answer
    x = 804.26

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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.