Home / 1,225,112.52-1,690,656.66-681,236.67

Finding the Fourth Proportional to 1,225,112.52, 1,690,656.66 and 681,236.67

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Solution

The fourth proportional to 1,225,112.52, 1,690,656.66 and 681,236.67 is: 940,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,112.52 : 1,690,656.66 = 681,236.67 : x
  2. Step 2: Convert to fraction form
    1,225,112.52/1,690,656.66 = 681,236.67/x
  3. Step 3: Cross multiply
    1,225,112.52x = 1,690,656.66 × 681,236.67
  4. Step 4: Simplify right side
    1,225,112.52x = 1,151,737,313,171.72
  5. Step 5: Solve for x
    x = 1,151,737,313,171.72/1,225,112.52
  6. Step 6: Final answer
    x = 940,107.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.