Home / 1,226,435.96-1,691,033.28-839,438.22

Finding the Fourth Proportional to 1,226,435.96, 1,691,033.28 and 839,438.22

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Solution

The fourth proportional to 1,226,435.96, 1,691,033.28 and 839,438.22 is: 1,157,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,435.96 : 1,691,033.28 = 839,438.22 : x
  2. Step 2: Convert to fraction form
    1,226,435.96/1,691,033.28 = 839,438.22/x
  3. Step 3: Cross multiply
    1,226,435.96x = 1,691,033.28 × 839,438.22
  4. Step 4: Simplify right side
    1,226,435.96x = 1,419,517,966,523.96
  5. Step 5: Solve for x
    x = 1,419,517,966,523.96/1,226,435.96
  6. Step 6: Final answer
    x = 1,157,433.42

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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.