Home / 401,724.14-554,360.67-220,431.56

Finding the Fourth Proportional to 401,724.14, 554,360.67 and 220,431.56

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Solution

The fourth proportional to 401,724.14, 554,360.67 and 220,431.56 is: 304,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,724.14 : 554,360.67 = 220,431.56 : x
  2. Step 2: Convert to fraction form
    401,724.14/554,360.67 = 220,431.56/x
  3. Step 3: Cross multiply
    401,724.14x = 554,360.67 × 220,431.56
  4. Step 4: Simplify right side
    401,724.14x = 122,198,584,518.94
  5. Step 5: Solve for x
    x = 122,198,584,518.94/401,724.14
  6. Step 6: Final answer
    x = 304,185.32

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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.