Home / 819,160.77-1,228,740.09-220,121.94

Finding the Fourth Proportional to 819,160.77, 1,228,740.09 and 220,121.94

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Solution

The fourth proportional to 819,160.77, 1,228,740.09 and 220,121.94 is: 330,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,160.77 : 1,228,740.09 = 220,121.94 : x
  2. Step 2: Convert to fraction form
    819,160.77/1,228,740.09 = 220,121.94/x
  3. Step 3: Cross multiply
    819,160.77x = 1,228,740.09 × 220,121.94
  4. Step 4: Simplify right side
    819,160.77x = 270,472,652,366.58
  5. Step 5: Solve for x
    x = 270,472,652,366.58/819,160.77
  6. Step 6: Final answer
    x = 330,182.62

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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.