Home / 1,212,896.78-1,818,812.28-454,206.13

Finding the Fourth Proportional to 1,212,896.78, 1,818,812.28 and 454,206.13

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Solution

The fourth proportional to 1,212,896.78, 1,818,812.28 and 454,206.13 is: 681,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,896.78 : 1,818,812.28 = 454,206.13 : x
  2. Step 2: Convert to fraction form
    1,212,896.78/1,818,812.28 = 454,206.13/x
  3. Step 3: Cross multiply
    1,212,896.78x = 1,818,812.28 × 454,206.13
  4. Step 4: Simplify right side
    1,212,896.78x = 826,115,682,348.25
  5. Step 5: Solve for x
    x = 826,115,682,348.25/1,212,896.78
  6. Step 6: Final answer
    x = 681,109.64

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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.