Home / 1,212,998.60-1,820,810.10-764,226.20

Finding the Fourth Proportional to 1,212,998.60, 1,820,810.10 and 764,226.20

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Solution

The fourth proportional to 1,212,998.60, 1,820,810.10 and 764,226.20 is: 1,147,166.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,998.60 : 1,820,810.10 = 764,226.20 : x
  2. Step 2: Convert to fraction form
    1,212,998.60/1,820,810.10 = 764,226.20/x
  3. Step 3: Cross multiply
    1,212,998.60x = 1,820,810.10 × 764,226.20
  4. Step 4: Simplify right side
    1,212,998.60x = 1,391,510,783,644.62
  5. Step 5: Solve for x
    x = 1,391,510,783,644.62/1,212,998.60
  6. Step 6: Final answer
    x = 1,147,166.03

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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.