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Finding the Fourth Proportional to 656,794.04, 906,375.38 and 354,988.04

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Solution

The fourth proportional to 656,794.04, 906,375.38 and 354,988.04 is: 489,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,794.04 : 906,375.38 = 354,988.04 : x
  2. Step 2: Convert to fraction form
    656,794.04/906,375.38 = 354,988.04/x
  3. Step 3: Cross multiply
    656,794.04x = 906,375.38 × 354,988.04
  4. Step 4: Simplify right side
    656,794.04x = 321,752,419,650.46
  5. Step 5: Solve for x
    x = 321,752,419,650.46/656,794.04
  6. Step 6: Final answer
    x = 489,883.28

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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.