Home / 1,225,309.67-1,690,797.91-681,357.61

Finding the Fourth Proportional to 1,225,309.67, 1,690,797.91 and 681,357.61

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Solution

The fourth proportional to 1,225,309.67, 1,690,797.91 and 681,357.61 is: 940,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,309.67 : 1,690,797.91 = 681,357.61 : x
  2. Step 2: Convert to fraction form
    1,225,309.67/1,690,797.91 = 681,357.61/x
  3. Step 3: Cross multiply
    1,225,309.67x = 1,690,797.91 × 681,357.61
  4. Step 4: Simplify right side
    1,225,309.67x = 1,152,038,022,950.60
  5. Step 5: Solve for x
    x = 1,152,038,022,950.60/1,225,309.67
  6. Step 6: Final answer
    x = 940,201.53

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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.