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Finding the Fourth Proportional to 644,911.20, 966,675.60 and 245,397.60

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Solution

The fourth proportional to 644,911.20, 966,675.60 and 245,397.60 is: 367,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,911.20 : 966,675.60 = 245,397.60 : x
  2. Step 2: Convert to fraction form
    644,911.20/966,675.60 = 245,397.60/x
  3. Step 3: Cross multiply
    644,911.20x = 966,675.60 × 245,397.60
  4. Step 4: Simplify right side
    644,911.20x = 237,219,872,218.56
  5. Step 5: Solve for x
    x = 237,219,872,218.56/644,911.20
  6. Step 6: Final answer
    x = 367,833.39

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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.