Home / 1,215,190.83-1,676,955.37-671,361.69

Finding the Fourth Proportional to 1,215,190.83, 1,676,955.37 and 671,361.69

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Solution

The fourth proportional to 1,215,190.83, 1,676,955.37 and 671,361.69 is: 926,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,190.83 : 1,676,955.37 = 671,361.69 : x
  2. Step 2: Convert to fraction form
    1,215,190.83/1,676,955.37 = 671,361.69/x
  3. Step 3: Cross multiply
    1,215,190.83x = 1,676,955.37 × 671,361.69
  4. Step 4: Simplify right side
    1,215,190.83x = 1,125,843,591,257.78
  5. Step 5: Solve for x
    x = 1,125,843,591,257.78/1,215,190.83
  6. Step 6: Final answer
    x = 926,474.73

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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.