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Finding the Fourth Proportional to 542,318.28, 748,444.02 and 300,676.64

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Solution

The fourth proportional to 542,318.28, 748,444.02 and 300,676.64 is: 414,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,318.28 : 748,444.02 = 300,676.64 : x
  2. Step 2: Convert to fraction form
    542,318.28/748,444.02 = 300,676.64/x
  3. Step 3: Cross multiply
    542,318.28x = 748,444.02 × 300,676.64
  4. Step 4: Simplify right side
    542,318.28x = 225,039,633,161.69
  5. Step 5: Solve for x
    x = 225,039,633,161.69/542,318.28
  6. Step 6: Final answer
    x = 414,958.60

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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.