Home / 2,181,628.60-3,272,442.90-685,720.60

Finding the Fourth Proportional to 2,181,628.60, 3,272,442.90 and 685,720.60

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Solution

The fourth proportional to 2,181,628.60, 3,272,442.90 and 685,720.60 is: 1,028,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181,628.60 : 3,272,442.90 = 685,720.60 : x
  2. Step 2: Convert to fraction form
    2,181,628.60/3,272,442.90 = 685,720.60/x
  3. Step 3: Cross multiply
    2,181,628.60x = 3,272,442.90 × 685,720.60
  4. Step 4: Simplify right side
    2,181,628.60x = 2,243,981,508,853.74
  5. Step 5: Solve for x
    x = 2,243,981,508,853.74/2,181,628.60
  6. Step 6: Final answer
    x = 1,028,580.90

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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.