Home / 1,015,231.78-1,521,822.33-636,418.03

Finding the Fourth Proportional to 1,015,231.78, 1,521,822.33 and 636,418.03

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Solution

The fourth proportional to 1,015,231.78, 1,521,822.33 and 636,418.03 is: 953,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,231.78 : 1,521,822.33 = 636,418.03 : x
  2. Step 2: Convert to fraction form
    1,015,231.78/1,521,822.33 = 636,418.03/x
  3. Step 3: Cross multiply
    1,015,231.78x = 1,521,822.33 × 636,418.03
  4. Step 4: Simplify right side
    1,015,231.78x = 968,515,169,268.61
  5. Step 5: Solve for x
    x = 968,515,169,268.61/1,015,231.78
  6. Step 6: Final answer
    x = 953,984.29

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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.