Home / 2,142,171.38-3,213,268.06-722,239.76

Finding the Fourth Proportional to 2,142,171.38, 3,213,268.06 and 722,239.76

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Solution

The fourth proportional to 2,142,171.38, 3,213,268.06 and 722,239.76 is: 1,083,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,171.38 : 3,213,268.06 = 722,239.76 : x
  2. Step 2: Convert to fraction form
    2,142,171.38/3,213,268.06 = 722,239.76/x
  3. Step 3: Cross multiply
    2,142,171.38x = 3,213,268.06 × 722,239.76
  4. Step 4: Simplify right side
    2,142,171.38x = 2,320,749,952,470.07
  5. Step 5: Solve for x
    x = 2,320,749,952,470.07/2,142,171.38
  6. Step 6: Final answer
    x = 1,083,363.35

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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.