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Finding the Fourth Proportional to 623.10, 932.08 and 512.17

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Solution

The fourth proportional to 623.10, 932.08 and 512.17 is: 766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.10 : 932.08 = 512.17 : x
  2. Step 2: Convert to fraction form
    623.10/932.08 = 512.17/x
  3. Step 3: Cross multiply
    623.10x = 932.08 × 512.17
  4. Step 4: Simplify right side
    623.10x = 477,383.41
  5. Step 5: Solve for x
    x = 477,383.41/623.10
  6. Step 6: Final answer
    x = 766.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.