Home / 800,026.40-1,200,040.75-326,711.75

Finding the Fourth Proportional to 800,026.40, 1,200,040.75 and 326,711.75

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Solution

The fourth proportional to 800,026.40, 1,200,040.75 and 326,711.75 is: 490,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,026.40 : 1,200,040.75 = 326,711.75 : x
  2. Step 2: Convert to fraction form
    800,026.40/1,200,040.75 = 326,711.75/x
  3. Step 3: Cross multiply
    800,026.40x = 1,200,040.75 × 326,711.75
  4. Step 4: Simplify right side
    800,026.40x = 392,067,407,912.00
  5. Step 5: Solve for x
    x = 392,067,407,912.00/800,026.40
  6. Step 6: Final answer
    x = 490,068.09

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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.