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Finding the Fourth Proportional to 647,511.21, 970,675.11 and 226,557.45

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Solution

The fourth proportional to 647,511.21, 970,675.11 and 226,557.45 is: 339,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,511.21 : 970,675.11 = 226,557.45 : x
  2. Step 2: Convert to fraction form
    647,511.21/970,675.11 = 226,557.45/x
  3. Step 3: Cross multiply
    647,511.21x = 970,675.11 × 226,557.45
  4. Step 4: Simplify right side
    647,511.21x = 219,913,677,700.07
  5. Step 5: Solve for x
    x = 219,913,677,700.07/647,511.21
  6. Step 6: Final answer
    x = 339,629.14

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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.