Home / 403,979.44-557,487.81-220,217.98

Finding the Fourth Proportional to 403,979.44, 557,487.81 and 220,217.98

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Solution

The fourth proportional to 403,979.44, 557,487.81 and 220,217.98 is: 303,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,979.44 : 557,487.81 = 220,217.98 : x
  2. Step 2: Convert to fraction form
    403,979.44/557,487.81 = 220,217.98/x
  3. Step 3: Cross multiply
    403,979.44x = 557,487.81 × 220,217.98
  4. Step 4: Simplify right side
    403,979.44x = 122,768,839,392.82
  5. Step 5: Solve for x
    x = 122,768,839,392.82/403,979.44
  6. Step 6: Final answer
    x = 303,898.73

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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.