Home / 681,645.62-1,022,468.43-208,326.98

Finding the Fourth Proportional to 681,645.62, 1,022,468.43 and 208,326.98

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Solution

The fourth proportional to 681,645.62, 1,022,468.43 and 208,326.98 is: 312,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,645.62 : 1,022,468.43 = 208,326.98 : x
  2. Step 2: Convert to fraction form
    681,645.62/1,022,468.43 = 208,326.98/x
  3. Step 3: Cross multiply
    681,645.62x = 1,022,468.43 × 208,326.98
  4. Step 4: Simplify right side
    681,645.62x = 213,007,755,054.90
  5. Step 5: Solve for x
    x = 213,007,755,054.90/681,645.62
  6. Step 6: Final answer
    x = 312,490.46

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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.