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Finding the Fourth Proportional to 878,467, 1,212,284.52 and 476,059

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Solution

The fourth proportional to 878,467, 1,212,284.52 and 476,059 is: 656,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,467 : 1,212,284.52 = 476,059 : x
  2. Step 2: Convert to fraction form
    878,467/1,212,284.52 = 476,059/x
  3. Step 3: Cross multiply
    878,467x = 1,212,284.52 × 476,059
  4. Step 4: Simplify right side
    878,467x = 577,118,956,306.68
  5. Step 5: Solve for x
    x = 577,118,956,306.68/878,467
  6. Step 6: Final answer
    x = 656,961.45

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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.