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Finding the Fourth Proportional to 647,666.60, 970,787.10 and 226,725.80

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Solution

The fourth proportional to 647,666.60, 970,787.10 and 226,725.80 is: 339,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,666.60 : 970,787.10 = 226,725.80 : x
  2. Step 2: Convert to fraction form
    647,666.60/970,787.10 = 226,725.80/x
  3. Step 3: Cross multiply
    647,666.60x = 970,787.10 × 226,725.80
  4. Step 4: Simplify right side
    647,666.60x = 220,102,481,877.18
  5. Step 5: Solve for x
    x = 220,102,481,877.18/647,666.60
  6. Step 6: Final answer
    x = 339,839.17

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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.