Home / 800,265.40-1,200,399.30-326,951.22

Finding the Fourth Proportional to 800,265.40, 1,200,399.30 and 326,951.22

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Solution

The fourth proportional to 800,265.40, 1,200,399.30 and 326,951.22 is: 490,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,265.40 : 1,200,399.30 = 326,951.22 : x
  2. Step 2: Convert to fraction form
    800,265.40/1,200,399.30 = 326,951.22/x
  3. Step 3: Cross multiply
    800,265.40x = 1,200,399.30 × 326,951.22
  4. Step 4: Simplify right side
    800,265.40x = 392,472,015,622.15
  5. Step 5: Solve for x
    x = 392,472,015,622.15/800,265.40
  6. Step 6: Final answer
    x = 490,427.32

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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.