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Finding the Fourth Proportional to 542,395.62, 748,505.93 and 300,677.58

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Solution

The fourth proportional to 542,395.62, 748,505.93 and 300,677.58 is: 414,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,395.62 : 748,505.93 = 300,677.58 : x
  2. Step 2: Convert to fraction form
    542,395.62/748,505.93 = 300,677.58/x
  3. Step 3: Cross multiply
    542,395.62x = 748,505.93 × 300,677.58
  4. Step 4: Simplify right side
    542,395.62x = 225,058,951,648.05
  5. Step 5: Solve for x
    x = 225,058,951,648.05/542,395.62
  6. Step 6: Final answer
    x = 414,935.05

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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.