Home / 681,451.80-1,022,226.30-208,136.40

Finding the Fourth Proportional to 681,451.80, 1,022,226.30 and 208,136.40

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Solution

The fourth proportional to 681,451.80, 1,022,226.30 and 208,136.40 is: 312,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,451.80 : 1,022,226.30 = 208,136.40 : x
  2. Step 2: Convert to fraction form
    681,451.80/1,022,226.30 = 208,136.40/x
  3. Step 3: Cross multiply
    681,451.80x = 1,022,226.30 × 208,136.40
  4. Step 4: Simplify right side
    681,451.80x = 212,762,502,067.32
  5. Step 5: Solve for x
    x = 212,762,502,067.32/681,451.80
  6. Step 6: Final answer
    x = 312,219.44

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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.