Home / 1,200,680.88-1,800,127.08-727,252.08

Finding the Fourth Proportional to 1,200,680.88, 1,800,127.08 and 727,252.08

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Solution

The fourth proportional to 1,200,680.88, 1,800,127.08 and 727,252.08 is: 1,090,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,680.88 : 1,800,127.08 = 727,252.08 : x
  2. Step 2: Convert to fraction form
    1,200,680.88/1,800,127.08 = 727,252.08/x
  3. Step 3: Cross multiply
    1,200,680.88x = 1,800,127.08 × 727,252.08
  4. Step 4: Simplify right side
    1,200,680.88x = 1,309,146,163,194.33
  5. Step 5: Solve for x
    x = 1,309,146,163,194.33/1,200,680.88
  6. Step 6: Final answer
    x = 1,090,336.48

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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.