Home / 1,247,579.80-1,721,658.86-674,618.52

Finding the Fourth Proportional to 1,247,579.80, 1,721,658.86 and 674,618.52

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Solution

The fourth proportional to 1,247,579.80, 1,721,658.86 and 674,618.52 is: 930,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,579.80 : 1,721,658.86 = 674,618.52 : x
  2. Step 2: Convert to fraction form
    1,247,579.80/1,721,658.86 = 674,618.52/x
  3. Step 3: Cross multiply
    1,247,579.80x = 1,721,658.86 × 674,618.52
  4. Step 4: Simplify right side
    1,247,579.80x = 1,161,462,952,078.09
  5. Step 5: Solve for x
    x = 1,161,462,952,078.09/1,247,579.80
  6. Step 6: Final answer
    x = 930,972.87

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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.