Home / 688,346.73-1,032,665.94-215,067.78

Finding the Fourth Proportional to 688,346.73, 1,032,665.94 and 215,067.78

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Solution

The fourth proportional to 688,346.73, 1,032,665.94 and 215,067.78 is: 322,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,346.73 : 1,032,665.94 = 215,067.78 : x
  2. Step 2: Convert to fraction form
    688,346.73/1,032,665.94 = 215,067.78/x
  3. Step 3: Cross multiply
    688,346.73x = 1,032,665.94 × 215,067.78
  4. Step 4: Simplify right side
    688,346.73x = 222,093,171,197.41
  5. Step 5: Solve for x
    x = 222,093,171,197.41/688,346.73
  6. Step 6: Final answer
    x = 322,647.24

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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.