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Finding the Fourth Proportional to 623.52, 930.60 and 617.04

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Solution

The fourth proportional to 623.52, 930.60 and 617.04 is: 920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.52 : 930.60 = 617.04 : x
  2. Step 2: Convert to fraction form
    623.52/930.60 = 617.04/x
  3. Step 3: Cross multiply
    623.52x = 930.60 × 617.04
  4. Step 4: Simplify right side
    623.52x = 574,217.42
  5. Step 5: Solve for x
    x = 574,217.42/623.52
  6. Step 6: Final answer
    x = 920.93

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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.