Home / 1,285,745.47-1,929,682.33-646,232.51

Finding the Fourth Proportional to 1,285,745.47, 1,929,682.33 and 646,232.51

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Solution

The fourth proportional to 1,285,745.47, 1,929,682.33 and 646,232.51 is: 969,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,745.47 : 1,929,682.33 = 646,232.51 : x
  2. Step 2: Convert to fraction form
    1,285,745.47/1,929,682.33 = 646,232.51/x
  3. Step 3: Cross multiply
    1,285,745.47x = 1,929,682.33 × 646,232.51
  4. Step 4: Simplify right side
    1,285,745.47x = 1,247,023,458,827.17
  5. Step 5: Solve for x
    x = 1,247,023,458,827.17/1,285,745.47
  6. Step 6: Final answer
    x = 969,883.61

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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.