Home / 1,205,463.78-1,663,418.89-722,016.50

Finding the Fourth Proportional to 1,205,463.78, 1,663,418.89 and 722,016.50

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Solution

The fourth proportional to 1,205,463.78, 1,663,418.89 and 722,016.50 is: 996,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,463.78 : 1,663,418.89 = 722,016.50 : x
  2. Step 2: Convert to fraction form
    1,205,463.78/1,663,418.89 = 722,016.50/x
  3. Step 3: Cross multiply
    1,205,463.78x = 1,663,418.89 × 722,016.50
  4. Step 4: Simplify right side
    1,205,463.78x = 1,201,015,884,991.68
  5. Step 5: Solve for x
    x = 1,201,015,884,991.68/1,205,463.78
  6. Step 6: Final answer
    x = 996,310.22

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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.