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Finding the Fourth Proportional to 441,452.96, 660,989.70 and 280,659.26

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Solution

The fourth proportional to 441,452.96, 660,989.70 and 280,659.26 is: 420,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,452.96 : 660,989.70 = 280,659.26 : x
  2. Step 2: Convert to fraction form
    441,452.96/660,989.70 = 280,659.26/x
  3. Step 3: Cross multiply
    441,452.96x = 660,989.70 × 280,659.26
  4. Step 4: Simplify right side
    441,452.96x = 185,512,880,069.62
  5. Step 5: Solve for x
    x = 185,512,880,069.62/441,452.96
  6. Step 6: Final answer
    x = 420,232.50

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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.