Home / 1,299,028.98-1,792,587.32-718,218.28

Finding the Fourth Proportional to 1,299,028.98, 1,792,587.32 and 718,218.28

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Solution

The fourth proportional to 1,299,028.98, 1,792,587.32 and 718,218.28 is: 991,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,028.98 : 1,792,587.32 = 718,218.28 : x
  2. Step 2: Convert to fraction form
    1,299,028.98/1,792,587.32 = 718,218.28/x
  3. Step 3: Cross multiply
    1,299,028.98x = 1,792,587.32 × 718,218.28
  4. Step 4: Simplify right side
    1,299,028.98x = 1,287,468,981,720.21
  5. Step 5: Solve for x
    x = 1,287,468,981,720.21/1,299,028.98
  6. Step 6: Final answer
    x = 991,101.05

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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.