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Finding the Fourth Proportional to 542,674.76, 748,872.32 and 300,979.83

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Solution

The fourth proportional to 542,674.76, 748,872.32 and 300,979.83 is: 415,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,674.76 : 748,872.32 = 300,979.83 : x
  2. Step 2: Convert to fraction form
    542,674.76/748,872.32 = 300,979.83/x
  3. Step 3: Cross multiply
    542,674.76x = 748,872.32 × 300,979.83
  4. Step 4: Simplify right side
    542,674.76x = 225,395,462,060.41
  5. Step 5: Solve for x
    x = 225,395,462,060.41/542,674.76
  6. Step 6: Final answer
    x = 415,341.71

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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.