Home / 1,293,215.18-1,939,822.79-394,661.52

Finding the Fourth Proportional to 1,293,215.18, 1,939,822.79 and 394,661.52

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Solution

The fourth proportional to 1,293,215.18, 1,939,822.79 and 394,661.52 is: 591,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,215.18 : 1,939,822.79 = 394,661.52 : x
  2. Step 2: Convert to fraction form
    1,293,215.18/1,939,822.79 = 394,661.52/x
  3. Step 3: Cross multiply
    1,293,215.18x = 1,939,822.79 × 394,661.52
  4. Step 4: Simplify right side
    1,293,215.18x = 765,573,408,858.73
  5. Step 5: Solve for x
    x = 765,573,408,858.73/1,293,215.18
  6. Step 6: Final answer
    x = 591,992.29

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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.