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Finding the Fourth Proportional to 662,257.92, 992,608.80 and 306,520.56

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Solution

The fourth proportional to 662,257.92, 992,608.80 and 306,520.56 is: 459,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,257.92 : 992,608.80 = 306,520.56 : x
  2. Step 2: Convert to fraction form
    662,257.92/992,608.80 = 306,520.56/x
  3. Step 3: Cross multiply
    662,257.92x = 992,608.80 × 306,520.56
  4. Step 4: Simplify right side
    662,257.92x = 304,255,005,236.93
  5. Step 5: Solve for x
    x = 304,255,005,236.93/662,257.92
  6. Step 6: Final answer
    x = 459,420.71

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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.