Home / 868,105.40-1,197,951.86-486,112.64

Finding the Fourth Proportional to 868,105.40, 1,197,951.86 and 486,112.64

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Solution

The fourth proportional to 868,105.40, 1,197,951.86 and 486,112.64 is: 670,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,105.40 : 1,197,951.86 = 486,112.64 : x
  2. Step 2: Convert to fraction form
    868,105.40/1,197,951.86 = 486,112.64/x
  3. Step 3: Cross multiply
    868,105.40x = 1,197,951.86 × 486,112.64
  4. Step 4: Simplify right side
    868,105.40x = 582,339,536,483.03
  5. Step 5: Solve for x
    x = 582,339,536,483.03/868,105.40
  6. Step 6: Final answer
    x = 670,816.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.