Home / 2,121,339.78-3,182,405.76-702,394.74

Finding the Fourth Proportional to 2,121,339.78, 3,182,405.76 and 702,394.74

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Solution

The fourth proportional to 2,121,339.78, 3,182,405.76 and 702,394.74 is: 1,053,723.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,339.78 : 3,182,405.76 = 702,394.74 : x
  2. Step 2: Convert to fraction form
    2,121,339.78/3,182,405.76 = 702,394.74/x
  3. Step 3: Cross multiply
    2,121,339.78x = 3,182,405.76 × 702,394.74
  4. Step 4: Simplify right side
    2,121,339.78x = 2,235,305,066,369.70
  5. Step 5: Solve for x
    x = 2,235,305,066,369.70/2,121,339.78
  6. Step 6: Final answer
    x = 1,053,723.26

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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.