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Finding the Fourth Proportional to 621.08, 935.33 and 565.72

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Solution

The fourth proportional to 621.08, 935.33 and 565.72 is: 851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.08 : 935.33 = 565.72 : x
  2. Step 2: Convert to fraction form
    621.08/935.33 = 565.72/x
  3. Step 3: Cross multiply
    621.08x = 935.33 × 565.72
  4. Step 4: Simplify right side
    621.08x = 529,127.38
  5. Step 5: Solve for x
    x = 529,127.38/621.08
  6. Step 6: Final answer
    x = 851.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.