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Finding the Fourth Proportional to 908,796.80, 1,363,195.20 and 277,709.60

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Solution

The fourth proportional to 908,796.80, 1,363,195.20 and 277,709.60 is: 416,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,796.80 : 1,363,195.20 = 277,709.60 : x
  2. Step 2: Convert to fraction form
    908,796.80/1,363,195.20 = 277,709.60/x
  3. Step 3: Cross multiply
    908,796.80x = 1,363,195.20 × 277,709.60
  4. Step 4: Simplify right side
    908,796.80x = 378,572,393,713.92
  5. Step 5: Solve for x
    x = 378,572,393,713.92/908,796.80
  6. Step 6: Final answer
    x = 416,564.40

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.