Home / 1,247,578.47-1,721,660.13-674,618.67

Finding the Fourth Proportional to 1,247,578.47, 1,721,660.13 and 674,618.67

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Solution

The fourth proportional to 1,247,578.47, 1,721,660.13 and 674,618.67 is: 930,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,578.47 : 1,721,660.13 = 674,618.67 : x
  2. Step 2: Convert to fraction form
    1,247,578.47/1,721,660.13 = 674,618.67/x
  3. Step 3: Cross multiply
    1,247,578.47x = 1,721,660.13 × 674,618.67
  4. Step 4: Simplify right side
    1,247,578.47x = 1,161,464,067,092.63
  5. Step 5: Solve for x
    x = 1,161,464,067,092.63/1,247,578.47
  6. Step 6: Final answer
    x = 930,974.76

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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.