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Finding the Fourth Proportional to 665,752.56, 998,670.88 and 281,429.76

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Solution

The fourth proportional to 665,752.56, 998,670.88 and 281,429.76 is: 422,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,752.56 : 998,670.88 = 281,429.76 : x
  2. Step 2: Convert to fraction form
    665,752.56/998,670.88 = 281,429.76/x
  3. Step 3: Cross multiply
    665,752.56x = 998,670.88 × 281,429.76
  4. Step 4: Simplify right side
    665,752.56x = 281,055,706,077.39
  5. Step 5: Solve for x
    x = 281,055,706,077.39/665,752.56
  6. Step 6: Final answer
    x = 422,162.41

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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.