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Finding the Fourth Proportional to 623.20, 934.65 and 525.73

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Solution

The fourth proportional to 623.20, 934.65 and 525.73 is: 788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.20 : 934.65 = 525.73 : x
  2. Step 2: Convert to fraction form
    623.20/934.65 = 525.73/x
  3. Step 3: Cross multiply
    623.20x = 934.65 × 525.73
  4. Step 4: Simplify right side
    623.20x = 491,373.54
  5. Step 5: Solve for x
    x = 491,373.54/623.20
  6. Step 6: Final answer
    x = 788.47

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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.