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Finding the Fourth Proportional to 658,753.92, 987,378.16 and 299,198.96

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Solution

The fourth proportional to 658,753.92, 987,378.16 and 299,198.96 is: 448,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,753.92 : 987,378.16 = 299,198.96 : x
  2. Step 2: Convert to fraction form
    658,753.92/987,378.16 = 299,198.96/x
  3. Step 3: Cross multiply
    658,753.92x = 987,378.16 × 299,198.96
  4. Step 4: Simplify right side
    658,753.92x = 295,422,518,598.71
  5. Step 5: Solve for x
    x = 295,422,518,598.71/658,753.92
  6. Step 6: Final answer
    x = 448,456.56

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1.5x scale

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.