Home / 681,728.60-1,022,711.70-282,150.20

Finding the Fourth Proportional to 681,728.60, 1,022,711.70 and 282,150.20

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Solution

The fourth proportional to 681,728.60, 1,022,711.70 and 282,150.20 is: 423,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,728.60 : 1,022,711.70 = 282,150.20 : x
  2. Step 2: Convert to fraction form
    681,728.60/1,022,711.70 = 282,150.20/x
  3. Step 3: Cross multiply
    681,728.60x = 1,022,711.70 × 282,150.20
  4. Step 4: Simplify right side
    681,728.60x = 288,558,310,697.34
  5. Step 5: Solve for x
    x = 288,558,310,697.34/681,728.60
  6. Step 6: Final answer
    x = 423,274.47

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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.