Home / 1,422,608.78-1,963,233.75-810,818.47

Finding the Fourth Proportional to 1,422,608.78, 1,963,233.75 and 810,818.47

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Solution

The fourth proportional to 1,422,608.78, 1,963,233.75 and 810,818.47 is: 1,118,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,608.78 : 1,963,233.75 = 810,818.47 : x
  2. Step 2: Convert to fraction form
    1,422,608.78/1,963,233.75 = 810,818.47/x
  3. Step 3: Cross multiply
    1,422,608.78x = 1,963,233.75 × 810,818.47
  4. Step 4: Simplify right side
    1,422,608.78x = 1,591,826,185,427.36
  5. Step 5: Solve for x
    x = 1,591,826,185,427.36/1,422,608.78
  6. Step 6: Final answer
    x = 1,118,948.66

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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.