Home / 1,236,172.40-1,850,936.42-784,447.55

Finding the Fourth Proportional to 1,236,172.40, 1,850,936.42 and 784,447.55

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Solution

The fourth proportional to 1,236,172.40, 1,850,936.42 and 784,447.55 is: 1,174,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,172.40 : 1,850,936.42 = 784,447.55 : x
  2. Step 2: Convert to fraction form
    1,236,172.40/1,850,936.42 = 784,447.55/x
  3. Step 3: Cross multiply
    1,236,172.40x = 1,850,936.42 × 784,447.55
  4. Step 4: Simplify right side
    1,236,172.40x = 1,451,962,539,874.77
  5. Step 5: Solve for x
    x = 1,451,962,539,874.77/1,236,172.40
  6. Step 6: Final answer
    x = 1,174,563.14

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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.