Home / 819,772.20-1,229,831.10-346,213.80

Finding the Fourth Proportional to 819,772.20, 1,229,831.10 and 346,213.80

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Solution

The fourth proportional to 819,772.20, 1,229,831.10 and 346,213.80 is: 519,393.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,772.20 : 1,229,831.10 = 346,213.80 : x
  2. Step 2: Convert to fraction form
    819,772.20/1,229,831.10 = 346,213.80/x
  3. Step 3: Cross multiply
    819,772.20x = 1,229,831.10 × 346,213.80
  4. Step 4: Simplify right side
    819,772.20x = 425,784,498,489.18
  5. Step 5: Solve for x
    x = 425,784,498,489.18/819,772.20
  6. Step 6: Final answer
    x = 519,393.68

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1.5x scale

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.