Home / 727,236.12-1,090,928.82-278,334.60

Finding the Fourth Proportional to 727,236.12, 1,090,928.82 and 278,334.60

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Solution

The fourth proportional to 727,236.12, 1,090,928.82 and 278,334.60 is: 417,530.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,236.12 : 1,090,928.82 = 278,334.60 : x
  2. Step 2: Convert to fraction form
    727,236.12/1,090,928.82 = 278,334.60/x
  3. Step 3: Cross multiply
    727,236.12x = 1,090,928.82 × 278,334.60
  4. Step 4: Simplify right side
    727,236.12x = 303,643,236,743.17
  5. Step 5: Solve for x
    x = 303,643,236,743.17/727,236.12
  6. Step 6: Final answer
    x = 417,530.47

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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.