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Finding the Fourth Proportional to 626.13, 934.61 and 557.48

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Solution

The fourth proportional to 626.13, 934.61 and 557.48 is: 832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.13 : 934.61 = 557.48 : x
  2. Step 2: Convert to fraction form
    626.13/934.61 = 557.48/x
  3. Step 3: Cross multiply
    626.13x = 934.61 × 557.48
  4. Step 4: Simplify right side
    626.13x = 521,025.93
  5. Step 5: Solve for x
    x = 521,025.93/626.13
  6. Step 6: Final answer
    x = 832.14

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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.