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Finding the Fourth Proportional to 726,684, 1,090,064.88 and 228,086.88

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Solution

The fourth proportional to 726,684, 1,090,064.88 and 228,086.88 is: 342,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,684 : 1,090,064.88 = 228,086.88 : x
  2. Step 2: Convert to fraction form
    726,684/1,090,064.88 = 228,086.88/x
  3. Step 3: Cross multiply
    726,684x = 1,090,064.88 × 228,086.88
  4. Step 4: Simplify right side
    726,684x = 248,629,497,476.77
  5. Step 5: Solve for x
    x = 248,629,497,476.77/726,684
  6. Step 6: Final answer
    x = 342,142.52

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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.