Home / 2,659,478.18-3,989,217.09-664,934.18

Finding the Fourth Proportional to 2,659,478.18, 3,989,217.09 and 664,934.18

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Solution

The fourth proportional to 2,659,478.18, 3,989,217.09 and 664,934.18 is: 997,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,478.18 : 3,989,217.09 = 664,934.18 : x
  2. Step 2: Convert to fraction form
    2,659,478.18/3,989,217.09 = 664,934.18/x
  3. Step 3: Cross multiply
    2,659,478.18x = 3,989,217.09 × 664,934.18
  4. Step 4: Simplify right side
    2,659,478.18x = 2,652,566,794,581.14
  5. Step 5: Solve for x
    x = 2,652,566,794,581.14/2,659,478.18
  6. Step 6: Final answer
    x = 997,401.22

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Double scale
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Similar ratio
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1.5x scale

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.