Home / 1,422,607.78-1,963,232.37-810,817.47

Finding the Fourth Proportional to 1,422,607.78, 1,963,232.37 and 810,817.47

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Solution

The fourth proportional to 1,422,607.78, 1,963,232.37 and 810,817.47 is: 1,118,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,607.78 : 1,963,232.37 = 810,817.47 : x
  2. Step 2: Convert to fraction form
    1,422,607.78/1,963,232.37 = 810,817.47/x
  3. Step 3: Cross multiply
    1,422,607.78x = 1,963,232.37 × 810,817.47
  4. Step 4: Simplify right side
    1,422,607.78x = 1,591,823,103,265.50
  5. Step 5: Solve for x
    x = 1,591,823,103,265.50/1,422,607.78
  6. Step 6: Final answer
    x = 1,118,947.28

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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.