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Finding the Fourth Proportional to 648,672.64, 972,611.52 and 227,996.80

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Solution

The fourth proportional to 648,672.64, 972,611.52 and 227,996.80 is: 341,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,672.64 : 972,611.52 = 227,996.80 : x
  2. Step 2: Convert to fraction form
    648,672.64/972,611.52 = 227,996.80/x
  3. Step 3: Cross multiply
    648,672.64x = 972,611.52 × 227,996.80
  4. Step 4: Simplify right side
    648,672.64x = 221,752,314,203.14
  5. Step 5: Solve for x
    x = 221,752,314,203.14/648,672.64
  6. Step 6: Final answer
    x = 341,855.51

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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.