Home / 681,617.10-1,022,425.65-208,301.70

Finding the Fourth Proportional to 681,617.10, 1,022,425.65 and 208,301.70

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Solution

The fourth proportional to 681,617.10, 1,022,425.65 and 208,301.70 is: 312,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,617.10 : 1,022,425.65 = 208,301.70 : x
  2. Step 2: Convert to fraction form
    681,617.10/1,022,425.65 = 208,301.70/x
  3. Step 3: Cross multiply
    681,617.10x = 1,022,425.65 × 208,301.70
  4. Step 4: Simplify right side
    681,617.10x = 212,973,001,018.61
  5. Step 5: Solve for x
    x = 212,973,001,018.61/681,617.10
  6. Step 6: Final answer
    x = 312,452.55

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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.