Home / 401,917.26-554,643.60-220,632.27

Finding the Fourth Proportional to 401,917.26, 554,643.60 and 220,632.27

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Solution

The fourth proportional to 401,917.26, 554,643.60 and 220,632.27 is: 304,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,917.26 : 554,643.60 = 220,632.27 : x
  2. Step 2: Convert to fraction form
    401,917.26/554,643.60 = 220,632.27/x
  3. Step 3: Cross multiply
    401,917.26x = 554,643.60 × 220,632.27
  4. Step 4: Simplify right side
    401,917.26x = 122,372,276,508.97
  5. Step 5: Solve for x
    x = 122,372,276,508.97/401,917.26
  6. Step 6: Final answer
    x = 304,471.31

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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.