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Finding the Fourth Proportional to 552,318.92, 762,191.87 and 310,601.66

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Solution

The fourth proportional to 552,318.92, 762,191.87 and 310,601.66 is: 428,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,318.92 : 762,191.87 = 310,601.66 : x
  2. Step 2: Convert to fraction form
    552,318.92/762,191.87 = 310,601.66/x
  3. Step 3: Cross multiply
    552,318.92x = 762,191.87 × 310,601.66
  4. Step 4: Simplify right side
    552,318.92x = 236,738,054,696.54
  5. Step 5: Solve for x
    x = 236,738,054,696.54/552,318.92
  6. Step 6: Final answer
    x = 428,625.65

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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.