Home / 799,711.20-1,199,129.40-325,861.20

Finding the Fourth Proportional to 799,711.20, 1,199,129.40 and 325,861.20

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Solution

The fourth proportional to 799,711.20, 1,199,129.40 and 325,861.20 is: 488,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,711.20 : 1,199,129.40 = 325,861.20 : x
  2. Step 2: Convert to fraction form
    799,711.20/1,199,129.40 = 325,861.20/x
  3. Step 3: Cross multiply
    799,711.20x = 1,199,129.40 × 325,861.20
  4. Step 4: Simplify right side
    799,711.20x = 390,749,745,239.28
  5. Step 5: Solve for x
    x = 390,749,745,239.28/799,711.20
  6. Step 6: Final answer
    x = 488,613.57

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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.