Home / 800,019.60-1,200,030.55-326,704.96

Finding the Fourth Proportional to 800,019.60, 1,200,030.55 and 326,704.96

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Solution

The fourth proportional to 800,019.60, 1,200,030.55 and 326,704.96 is: 490,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,019.60 : 1,200,030.55 = 326,704.96 : x
  2. Step 2: Convert to fraction form
    800,019.60/1,200,030.55 = 326,704.96/x
  3. Step 3: Cross multiply
    800,019.60x = 1,200,030.55 × 326,704.96
  4. Step 4: Simplify right side
    800,019.60x = 392,055,929,720.61
  5. Step 5: Solve for x
    x = 392,055,929,720.61/800,019.60
  6. Step 6: Final answer
    x = 490,057.91

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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.