Home / 1,321,913.75-1,824,251.91-718,301.75

Finding the Fourth Proportional to 1,321,913.75, 1,824,251.91 and 718,301.75

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Solution

The fourth proportional to 1,321,913.75, 1,824,251.91 and 718,301.75 is: 991,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,913.75 : 1,824,251.91 = 718,301.75 : x
  2. Step 2: Convert to fraction form
    1,321,913.75/1,824,251.91 = 718,301.75/x
  3. Step 3: Cross multiply
    1,321,913.75x = 1,824,251.91 × 718,301.75
  4. Step 4: Simplify right side
    1,321,913.75x = 1,310,363,339,393.84
  5. Step 5: Solve for x
    x = 1,310,363,339,393.84/1,321,913.75
  6. Step 6: Final answer
    x = 991,262.36

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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.