Home / 681,706.20-1,022,549.70-307,728.60

Finding the Fourth Proportional to 681,706.20, 1,022,549.70 and 307,728.60

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Solution

The fourth proportional to 681,706.20, 1,022,549.70 and 307,728.60 is: 461,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,706.20 : 1,022,549.70 = 307,728.60 : x
  2. Step 2: Convert to fraction form
    681,706.20/1,022,549.70 = 307,728.60/x
  3. Step 3: Cross multiply
    681,706.20x = 1,022,549.70 × 307,728.60
  4. Step 4: Simplify right side
    681,706.20x = 314,667,787,611.42
  5. Step 5: Solve for x
    x = 314,667,787,611.42/681,706.20
  6. Step 6: Final answer
    x = 461,588.57

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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.