Home / 744,705.36-1,027,719-405,186.48

Finding the Fourth Proportional to 744,705.36, 1,027,719 and 405,186.48

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Solution

The fourth proportional to 744,705.36, 1,027,719 and 405,186.48 is: 559,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,705.36 : 1,027,719 = 405,186.48 : x
  2. Step 2: Convert to fraction form
    744,705.36/1,027,719 = 405,186.48/x
  3. Step 3: Cross multiply
    744,705.36x = 1,027,719 × 405,186.48
  4. Step 4: Simplify right side
    744,705.36x = 416,417,844,039.12
  5. Step 5: Solve for x
    x = 416,417,844,039.12/744,705.36
  6. Step 6: Final answer
    x = 559,171.27

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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.