Home / 917,960.54-1,375,956.38-443,993.90

Finding the Fourth Proportional to 917,960.54, 1,375,956.38 and 443,993.90

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Solution

The fourth proportional to 917,960.54, 1,375,956.38 and 443,993.90 is: 665,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,960.54 : 1,375,956.38 = 443,993.90 : x
  2. Step 2: Convert to fraction form
    917,960.54/1,375,956.38 = 443,993.90/x
  3. Step 3: Cross multiply
    917,960.54x = 1,375,956.38 × 443,993.90
  4. Step 4: Simplify right side
    917,960.54x = 610,916,233,616.29
  5. Step 5: Solve for x
    x = 610,916,233,616.29/917,960.54
  6. Step 6: Final answer
    x = 665,514.70

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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.