Home / 1,212,936.30-1,819,404.45-839,688.30

Finding the Fourth Proportional to 1,212,936.30, 1,819,404.45 and 839,688.30

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Solution

The fourth proportional to 1,212,936.30, 1,819,404.45 and 839,688.30 is: 1,259,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,936.30 : 1,819,404.45 = 839,688.30 : x
  2. Step 2: Convert to fraction form
    1,212,936.30/1,819,404.45 = 839,688.30/x
  3. Step 3: Cross multiply
    1,212,936.30x = 1,819,404.45 × 839,688.30
  4. Step 4: Simplify right side
    1,212,936.30x = 1,527,732,629,632.94
  5. Step 5: Solve for x
    x = 1,527,732,629,632.94/1,212,936.30
  6. Step 6: Final answer
    x = 1,259,532.45

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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.