Home / 498,826.20-748,020.60-199,207.20

Finding the Fourth Proportional to 498,826.20, 748,020.60 and 199,207.20

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Solution

The fourth proportional to 498,826.20, 748,020.60 and 199,207.20 is: 298,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,826.20 : 748,020.60 = 199,207.20 : x
  2. Step 2: Convert to fraction form
    498,826.20/748,020.60 = 199,207.20/x
  3. Step 3: Cross multiply
    498,826.20x = 748,020.60 × 199,207.20
  4. Step 4: Simplify right side
    498,826.20x = 149,011,089,268.32
  5. Step 5: Solve for x
    x = 149,011,089,268.32/498,826.20
  6. Step 6: Final answer
    x = 298,723.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.