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Finding the Fourth Proportional to 644,699.25, 966,671.28 and 245,369.52

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Solution

The fourth proportional to 644,699.25, 966,671.28 and 245,369.52 is: 367,910.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,699.25 : 966,671.28 = 245,369.52 : x
  2. Step 2: Convert to fraction form
    644,699.25/966,671.28 = 245,369.52/x
  3. Step 3: Cross multiply
    644,699.25x = 966,671.28 × 245,369.52
  4. Step 4: Simplify right side
    644,699.25x = 237,191,667,971.39
  5. Step 5: Solve for x
    x = 237,191,667,971.39/644,699.25
  6. Step 6: Final answer
    x = 367,910.57

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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.