Home / 2,142,169.74-3,213,265.61-722,238.12

Finding the Fourth Proportional to 2,142,169.74, 3,213,265.61 and 722,238.12

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Solution

The fourth proportional to 2,142,169.74, 3,213,265.61 and 722,238.12 is: 1,083,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,169.74 : 3,213,265.61 = 722,238.12 : x
  2. Step 2: Convert to fraction form
    2,142,169.74/3,213,265.61 = 722,238.12/x
  3. Step 3: Cross multiply
    2,142,169.74x = 3,213,265.61 × 722,238.12
  4. Step 4: Simplify right side
    2,142,169.74x = 2,320,742,915,032.65
  5. Step 5: Solve for x
    x = 2,320,742,915,032.65/2,142,169.74
  6. Step 6: Final answer
    x = 1,083,360.89

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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.