Home / 1,786,845.39-2,680,768.35-722,634.78

Finding the Fourth Proportional to 1,786,845.39, 2,680,768.35 and 722,634.78

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Solution

The fourth proportional to 1,786,845.39, 2,680,768.35 and 722,634.78 is: 1,084,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,845.39 : 2,680,768.35 = 722,634.78 : x
  2. Step 2: Convert to fraction form
    1,786,845.39/2,680,768.35 = 722,634.78/x
  3. Step 3: Cross multiply
    1,786,845.39x = 2,680,768.35 × 722,634.78
  4. Step 4: Simplify right side
    1,786,845.39x = 1,937,216,446,833.21
  5. Step 5: Solve for x
    x = 1,937,216,446,833.21/1,786,845.39
  6. Step 6: Final answer
    x = 1,084,154.49

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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.