Home / 1,212,792.80-1,819,189.20-413,954.60

Finding the Fourth Proportional to 1,212,792.80, 1,819,189.20 and 413,954.60

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Solution

The fourth proportional to 1,212,792.80, 1,819,189.20 and 413,954.60 is: 620,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,792.80 : 1,819,189.20 = 413,954.60 : x
  2. Step 2: Convert to fraction form
    1,212,792.80/1,819,189.20 = 413,954.60/x
  3. Step 3: Cross multiply
    1,212,792.80x = 1,819,189.20 × 413,954.60
  4. Step 4: Simplify right side
    1,212,792.80x = 753,061,737,610.32
  5. Step 5: Solve for x
    x = 753,061,737,610.32/1,212,792.80
  6. Step 6: Final answer
    x = 620,931.90

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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.