Home / 1,247,310.54-1,721,288.70-674,350.56

Finding the Fourth Proportional to 1,247,310.54, 1,721,288.70 and 674,350.56

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Solution

The fourth proportional to 1,247,310.54, 1,721,288.70 and 674,350.56 is: 930,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,310.54 : 1,721,288.70 = 674,350.56 : x
  2. Step 2: Convert to fraction form
    1,247,310.54/1,721,288.70 = 674,350.56/x
  3. Step 3: Cross multiply
    1,247,310.54x = 1,721,288.70 × 674,350.56
  4. Step 4: Simplify right side
    1,247,310.54x = 1,160,751,998,766.67
  5. Step 5: Solve for x
    x = 1,160,751,998,766.67/1,247,310.54
  6. Step 6: Final answer
    x = 930,603.86

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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.