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Finding the Fourth Proportional to 482,519.60, 665,956.78 and 267,728.86

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Solution

The fourth proportional to 482,519.60, 665,956.78 and 267,728.86 is: 369,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,519.60 : 665,956.78 = 267,728.86 : x
  2. Step 2: Convert to fraction form
    482,519.60/665,956.78 = 267,728.86/x
  3. Step 3: Cross multiply
    482,519.60x = 665,956.78 × 267,728.86
  4. Step 4: Simplify right side
    482,519.60x = 178,295,849,518.67
  5. Step 5: Solve for x
    x = 178,295,849,518.67/482,519.60
  6. Step 6: Final answer
    x = 369,510.07

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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.