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Finding the Fourth Proportional to 726,678, 1,090,055.88 and 228,080.88

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Solution

The fourth proportional to 726,678, 1,090,055.88 and 228,080.88 is: 342,133.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,678 : 1,090,055.88 = 228,080.88 : x
  2. Step 2: Convert to fraction form
    726,678/1,090,055.88 = 228,080.88/x
  3. Step 3: Cross multiply
    726,678x = 1,090,055.88 × 228,080.88
  4. Step 4: Simplify right side
    726,678x = 248,620,904,359.57
  5. Step 5: Solve for x
    x = 248,620,904,359.57/726,678
  6. Step 6: Final answer
    x = 342,133.52

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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.