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Finding the Fourth Proportional to 544,007.80, 815,720.10 and 228,107.80

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Solution

The fourth proportional to 544,007.80, 815,720.10 and 228,107.80 is: 342,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,007.80 : 815,720.10 = 228,107.80 : x
  2. Step 2: Convert to fraction form
    544,007.80/815,720.10 = 228,107.80/x
  3. Step 3: Cross multiply
    544,007.80x = 815,720.10 × 228,107.80
  4. Step 4: Simplify right side
    544,007.80x = 186,072,117,426.78
  5. Step 5: Solve for x
    x = 186,072,117,426.78/544,007.80
  6. Step 6: Final answer
    x = 342,039.43

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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.