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Finding the Fourth Proportional to 482,729.64, 666,112.86 and 267,878.76

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Solution

The fourth proportional to 482,729.64, 666,112.86 and 267,878.76 is: 369,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,729.64 : 666,112.86 = 267,878.76 : x
  2. Step 2: Convert to fraction form
    482,729.64/666,112.86 = 267,878.76/x
  3. Step 3: Cross multiply
    482,729.64x = 666,112.86 × 267,878.76
  4. Step 4: Simplify right side
    482,729.64x = 178,437,486,956.85
  5. Step 5: Solve for x
    x = 178,437,486,956.85/482,729.64
  6. Step 6: Final answer
    x = 369,642.70

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1.5x scale

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.