Home / 1,212,112.28-1,671,516.48-1,028,851.28

Finding the Fourth Proportional to 1,212,112.28, 1,671,516.48 and 1,028,851.28

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Solution

The fourth proportional to 1,212,112.28, 1,671,516.48 and 1,028,851.28 is: 1,418,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,112.28 : 1,671,516.48 = 1,028,851.28 : x
  2. Step 2: Convert to fraction form
    1,212,112.28/1,671,516.48 = 1,028,851.28/x
  3. Step 3: Cross multiply
    1,212,112.28x = 1,671,516.48 × 1,028,851.28
  4. Step 4: Simplify right side
    1,212,112.28x = 1,719,741,869,989.09
  5. Step 5: Solve for x
    x = 1,719,741,869,989.09/1,212,112.28
  6. Step 6: Final answer
    x = 1,418,797.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.