Home / 1,285,849.47-1,929,202.97-855,264.44

Finding the Fourth Proportional to 1,285,849.47, 1,929,202.97 and 855,264.44

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Solution

The fourth proportional to 1,285,849.47, 1,929,202.97 and 855,264.44 is: 1,283,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,849.47 : 1,929,202.97 = 855,264.44 : x
  2. Step 2: Convert to fraction form
    1,285,849.47/1,929,202.97 = 855,264.44/x
  3. Step 3: Cross multiply
    1,285,849.47x = 1,929,202.97 × 855,264.44
  4. Step 4: Simplify right side
    1,285,849.47x = 1,649,978,702,462.76
  5. Step 5: Solve for x
    x = 1,649,978,702,462.76/1,285,849.47
  6. Step 6: Final answer
    x = 1,283,181.85

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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.