Home / 1,786,851.41-2,680,777.35-722,640.78

Finding the Fourth Proportional to 1,786,851.41, 2,680,777.35 and 722,640.78

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Solution

The fourth proportional to 1,786,851.41, 2,680,777.35 and 722,640.78 is: 1,084,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,851.41 : 2,680,777.35 = 722,640.78 : x
  2. Step 2: Convert to fraction form
    1,786,851.41/2,680,777.35 = 722,640.78/x
  3. Step 3: Cross multiply
    1,786,851.41x = 2,680,777.35 × 722,640.78
  4. Step 4: Simplify right side
    1,786,851.41x = 1,937,239,035,210.33
  5. Step 5: Solve for x
    x = 1,937,239,035,210.33/1,786,851.41
  6. Step 6: Final answer
    x = 1,084,163.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.