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Finding the Fourth Proportional to 701,919.40, 968,645.70 and 379,629.88

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Solution

The fourth proportional to 701,919.40, 968,645.70 and 379,629.88 is: 523,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,919.40 : 968,645.70 = 379,629.88 : x
  2. Step 2: Convert to fraction form
    701,919.40/968,645.70 = 379,629.88/x
  3. Step 3: Cross multiply
    701,919.40x = 968,645.70 × 379,629.88
  4. Step 4: Simplify right side
    701,919.40x = 367,726,850,853.52
  5. Step 5: Solve for x
    x = 367,726,850,853.52/701,919.40
  6. Step 6: Final answer
    x = 523,887.57

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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.