Home / 398,789.56-598,297.32-162,301.96

Finding the Fourth Proportional to 398,789.56, 598,297.32 and 162,301.96

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Solution

The fourth proportional to 398,789.56, 598,297.32 and 162,301.96 is: 243,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,789.56 : 598,297.32 = 162,301.96 : x
  2. Step 2: Convert to fraction form
    398,789.56/598,297.32 = 162,301.96/x
  3. Step 3: Cross multiply
    398,789.56x = 598,297.32 × 162,301.96
  4. Step 4: Simplify right side
    398,789.56x = 97,104,827,698.75
  5. Step 5: Solve for x
    x = 97,104,827,698.75/398,789.56
  6. Step 6: Final answer
    x = 243,498.92

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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.