Home / 800,034.40-1,200,052.78-326,719.80

Finding the Fourth Proportional to 800,034.40, 1,200,052.78 and 326,719.80

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Solution

The fourth proportional to 800,034.40, 1,200,052.78 and 326,719.80 is: 490,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,034.40 : 1,200,052.78 = 326,719.80 : x
  2. Step 2: Convert to fraction form
    800,034.40/1,200,052.78 = 326,719.80/x
  3. Step 3: Cross multiply
    800,034.40x = 1,200,052.78 × 326,719.80
  4. Step 4: Simplify right side
    800,034.40x = 392,081,004,271.04
  5. Step 5: Solve for x
    x = 392,081,004,271.04/800,034.40
  6. Step 6: Final answer
    x = 490,080.18

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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.