Home / 728,074.80-1,091,971.26-222,513.30

Finding the Fourth Proportional to 728,074.80, 1,091,971.26 and 222,513.30

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Solution

The fourth proportional to 728,074.80, 1,091,971.26 and 222,513.30 is: 333,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,074.80 : 1,091,971.26 = 222,513.30 : x
  2. Step 2: Convert to fraction form
    728,074.80/1,091,971.26 = 222,513.30/x
  3. Step 3: Cross multiply
    728,074.80x = 1,091,971.26 × 222,513.30
  4. Step 4: Simplify right side
    728,074.80x = 242,978,128,567.76
  5. Step 5: Solve for x
    x = 242,978,128,567.76/728,074.80
  6. Step 6: Final answer
    x = 333,726.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.