Home / 819,564.42-1,229,252.06-220,478.50

Finding the Fourth Proportional to 819,564.42, 1,229,252.06 and 220,478.50

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Solution

The fourth proportional to 819,564.42, 1,229,252.06 and 220,478.50 is: 330,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,564.42 : 1,229,252.06 = 220,478.50 : x
  2. Step 2: Convert to fraction form
    819,564.42/1,229,252.06 = 220,478.50/x
  3. Step 3: Cross multiply
    819,564.42x = 1,229,252.06 × 220,478.50
  4. Step 4: Simplify right side
    819,564.42x = 271,023,646,744.90
  5. Step 5: Solve for x
    x = 271,023,646,744.90/819,564.42
  6. Step 6: Final answer
    x = 330,692.30

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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.