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Finding the Fourth Proportional to 482,494.73, 665,829.86 and 278,538.75

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Solution

The fourth proportional to 482,494.73, 665,829.86 and 278,538.75 is: 384,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,494.73 : 665,829.86 = 278,538.75 : x
  2. Step 2: Convert to fraction form
    482,494.73/665,829.86 = 278,538.75/x
  3. Step 3: Cross multiply
    482,494.73x = 665,829.86 × 278,538.75
  4. Step 4: Simplify right side
    482,494.73x = 185,459,415,524.38
  5. Step 5: Solve for x
    x = 185,459,415,524.38/482,494.73
  6. Step 6: Final answer
    x = 384,376.05

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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.