Home / 644,636.12-966,864.90-171,359.96

Finding the Fourth Proportional to 644,636.12, 966,864.90 and 171,359.96

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Solution

The fourth proportional to 644,636.12, 966,864.90 and 171,359.96 is: 257,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,636.12 : 966,864.90 = 171,359.96 : x
  2. Step 2: Convert to fraction form
    644,636.12/966,864.90 = 171,359.96/x
  3. Step 3: Cross multiply
    644,636.12x = 966,864.90 × 171,359.96
  4. Step 4: Simplify right side
    644,636.12x = 165,681,930,589.40
  5. Step 5: Solve for x
    x = 165,681,930,589.40/644,636.12
  6. Step 6: Final answer
    x = 257,016.21

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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.