Home / 401,789.21-554,467.36-220,504.07

Finding the Fourth Proportional to 401,789.21, 554,467.36 and 220,504.07

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Solution

The fourth proportional to 401,789.21, 554,467.36 and 220,504.07 is: 304,294.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,789.21 : 554,467.36 = 220,504.07 : x
  2. Step 2: Convert to fraction form
    401,789.21/554,467.36 = 220,504.07/x
  3. Step 3: Cross multiply
    401,789.21x = 554,467.36 × 220,504.07
  4. Step 4: Simplify right side
    401,789.21x = 122,262,309,144.70
  5. Step 5: Solve for x
    x = 122,262,309,144.70/401,789.21
  6. Step 6: Final answer
    x = 304,294.66

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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.