Home / 401,784.12-554,456.92-220,497.72

Finding the Fourth Proportional to 401,784.12, 554,456.92 and 220,497.72

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Solution

The fourth proportional to 401,784.12, 554,456.92 and 220,497.72 is: 304,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,784.12 : 554,456.92 = 220,497.72 : x
  2. Step 2: Convert to fraction form
    401,784.12/554,456.92 = 220,497.72/x
  3. Step 3: Cross multiply
    401,784.12x = 554,456.92 × 220,497.72
  4. Step 4: Simplify right side
    401,784.12x = 122,256,486,698.22
  5. Step 5: Solve for x
    x = 122,256,486,698.22/401,784.12
  6. Step 6: Final answer
    x = 304,284.02

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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.