Home / 725,708.16-1,001,409.48-419,735.52

Finding the Fourth Proportional to 725,708.16, 1,001,409.48 and 419,735.52

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Solution

The fourth proportional to 725,708.16, 1,001,409.48 and 419,735.52 is: 579,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,708.16 : 1,001,409.48 = 419,735.52 : x
  2. Step 2: Convert to fraction form
    725,708.16/1,001,409.48 = 419,735.52/x
  3. Step 3: Cross multiply
    725,708.16x = 1,001,409.48 × 419,735.52
  4. Step 4: Simplify right side
    725,708.16x = 420,327,128,820.73
  5. Step 5: Solve for x
    x = 420,327,128,820.73/725,708.16
  6. Step 6: Final answer
    x = 579,195.81

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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.