Home / 819,137.64-1,228,705.81-220,098.80

Finding the Fourth Proportional to 819,137.64, 1,228,705.81 and 220,098.80

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Solution

The fourth proportional to 819,137.64, 1,228,705.81 and 220,098.80 is: 330,148.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,137.64 : 1,228,705.81 = 220,098.80 : x
  2. Step 2: Convert to fraction form
    819,137.64/1,228,705.81 = 220,098.80/x
  3. Step 3: Cross multiply
    819,137.64x = 1,228,705.81 × 220,098.80
  4. Step 4: Simplify right side
    819,137.64x = 270,436,674,334.03
  5. Step 5: Solve for x
    x = 270,436,674,334.03/819,137.64
  6. Step 6: Final answer
    x = 330,148.03

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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.