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Finding the Fourth Proportional to 445,928.80, 615,573.72 and 273,874.66

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Solution

The fourth proportional to 445,928.80, 615,573.72 and 273,874.66 is: 378,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,928.80 : 615,573.72 = 273,874.66 : x
  2. Step 2: Convert to fraction form
    445,928.80/615,573.72 = 273,874.66/x
  3. Step 3: Cross multiply
    445,928.80x = 615,573.72 × 273,874.66
  4. Step 4: Simplify right side
    445,928.80x = 168,590,043,269.94
  5. Step 5: Solve for x
    x = 168,590,043,269.94/445,928.80
  6. Step 6: Final answer
    x = 378,064.94

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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.