Home / 1,291,144.44-1,781,753.10-718,172.28

Finding the Fourth Proportional to 1,291,144.44, 1,781,753.10 and 718,172.28

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Solution

The fourth proportional to 1,291,144.44, 1,781,753.10 and 718,172.28 is: 991,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,144.44 : 1,781,753.10 = 718,172.28 : x
  2. Step 2: Convert to fraction form
    1,291,144.44/1,781,753.10 = 718,172.28/x
  3. Step 3: Cross multiply
    1,291,144.44x = 1,781,753.10 × 718,172.28
  4. Step 4: Simplify right side
    1,291,144.44x = 1,279,605,686,224.07
  5. Step 5: Solve for x
    x = 1,279,605,686,224.07/1,291,144.44
  6. Step 6: Final answer
    x = 991,063.16

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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.