Home / 1,939,054.38-2,909,909.97-676,881.78

Finding the Fourth Proportional to 1,939,054.38, 2,909,909.97 and 676,881.78

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Solution

The fourth proportional to 1,939,054.38, 2,909,909.97 and 676,881.78 is: 1,015,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,054.38 : 2,909,909.97 = 676,881.78 : x
  2. Step 2: Convert to fraction form
    1,939,054.38/2,909,909.97 = 676,881.78/x
  3. Step 3: Cross multiply
    1,939,054.38x = 2,909,909.97 × 676,881.78
  4. Step 4: Simplify right side
    1,939,054.38x = 1,969,665,040,133.35
  5. Step 5: Solve for x
    x = 1,969,665,040,133.35/1,939,054.38
  6. Step 6: Final answer
    x = 1,015,786.39

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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.