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Finding the Fourth Proportional to 693.81, 956.25 and 472.32

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Solution

The fourth proportional to 693.81, 956.25 and 472.32 is: 650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.81 : 956.25 = 472.32 : x
  2. Step 2: Convert to fraction form
    693.81/956.25 = 472.32/x
  3. Step 3: Cross multiply
    693.81x = 956.25 × 472.32
  4. Step 4: Simplify right side
    693.81x = 451,656
  5. Step 5: Solve for x
    x = 451,656/693.81
  6. Step 6: Final answer
    x = 650.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.