Home / 814,611.60-1,222,063.20-341,344.80

Finding the Fourth Proportional to 814,611.60, 1,222,063.20 and 341,344.80

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Solution

The fourth proportional to 814,611.60, 1,222,063.20 and 341,344.80 is: 512,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,611.60 : 1,222,063.20 = 341,344.80 : x
  2. Step 2: Convert to fraction form
    814,611.60/1,222,063.20 = 341,344.80/x
  3. Step 3: Cross multiply
    814,611.60x = 1,222,063.20 × 341,344.80
  4. Step 4: Simplify right side
    814,611.60x = 417,144,918,591.36
  5. Step 5: Solve for x
    x = 417,144,918,591.36/814,611.60
  6. Step 6: Final answer
    x = 512,078.29

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1.5x scale

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.