Home / 426,105.20-588,246.36-307,218.80

Finding the Fourth Proportional to 426,105.20, 588,246.36 and 307,218.80

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Solution

The fourth proportional to 426,105.20, 588,246.36 and 307,218.80 is: 424,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,105.20 : 588,246.36 = 307,218.80 : x
  2. Step 2: Convert to fraction form
    426,105.20/588,246.36 = 307,218.80/x
  3. Step 3: Cross multiply
    426,105.20x = 588,246.36 × 307,218.80
  4. Step 4: Simplify right side
    426,105.20x = 180,720,340,823.57
  5. Step 5: Solve for x
    x = 180,720,340,823.57/426,105.20
  6. Step 6: Final answer
    x = 424,121.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.