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Finding the Fourth Proportional to 542,705.62, 748,844.04 and 300,949.78

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Solution

The fourth proportional to 542,705.62, 748,844.04 and 300,949.78 is: 415,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,705.62 : 748,844.04 = 300,949.78 : x
  2. Step 2: Convert to fraction form
    542,705.62/748,844.04 = 300,949.78/x
  3. Step 3: Cross multiply
    542,705.62x = 748,844.04 × 300,949.78
  4. Step 4: Simplify right side
    542,705.62x = 225,364,449,092.31
  5. Step 5: Solve for x
    x = 225,364,449,092.31/542,705.62
  6. Step 6: Final answer
    x = 415,260.95

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1.5x scale

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.