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Finding the Fourth Proportional to 665,995.20, 998,992.80 and 466,540.80

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Solution

The fourth proportional to 665,995.20, 998,992.80 and 466,540.80 is: 699,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,995.20 : 998,992.80 = 466,540.80 : x
  2. Step 2: Convert to fraction form
    665,995.20/998,992.80 = 466,540.80/x
  3. Step 3: Cross multiply
    665,995.20x = 998,992.80 × 466,540.80
  4. Step 4: Simplify right side
    665,995.20x = 466,070,900,106.24
  5. Step 5: Solve for x
    x = 466,070,900,106.24/665,995.20
  6. Step 6: Final answer
    x = 699,811.20

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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.