Home / 825,842.40-1,238,456.40-327,103.20

Finding the Fourth Proportional to 825,842.40, 1,238,456.40 and 327,103.20

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Solution

The fourth proportional to 825,842.40, 1,238,456.40 and 327,103.20 is: 490,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,842.40 : 1,238,456.40 = 327,103.20 : x
  2. Step 2: Convert to fraction form
    825,842.40/1,238,456.40 = 327,103.20/x
  3. Step 3: Cross multiply
    825,842.40x = 1,238,456.40 × 327,103.20
  4. Step 4: Simplify right side
    825,842.40x = 405,103,051,500.48
  5. Step 5: Solve for x
    x = 405,103,051,500.48/825,842.40
  6. Step 6: Final answer
    x = 490,533.12

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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.