Home / 819,159.09-1,228,737.57-220,120.25

Finding the Fourth Proportional to 819,159.09, 1,228,737.57 and 220,120.25

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Solution

The fourth proportional to 819,159.09, 1,228,737.57 and 220,120.25 is: 330,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,159.09 : 1,228,737.57 = 220,120.25 : x
  2. Step 2: Convert to fraction form
    819,159.09/1,228,737.57 = 220,120.25/x
  3. Step 3: Cross multiply
    819,159.09x = 1,228,737.57 × 220,120.25
  4. Step 4: Simplify right side
    819,159.09x = 270,470,021,092.79
  5. Step 5: Solve for x
    x = 270,470,021,092.79/819,159.09
  6. Step 6: Final answer
    x = 330,180.09

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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.