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Finding the Fourth Proportional to 490,104.90, 734,173.20 and 330,672.60

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Solution

The fourth proportional to 490,104.90, 734,173.20 and 330,672.60 is: 495,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,104.90 : 734,173.20 = 330,672.60 : x
  2. Step 2: Convert to fraction form
    490,104.90/734,173.20 = 330,672.60/x
  3. Step 3: Cross multiply
    490,104.90x = 734,173.20 × 330,672.60
  4. Step 4: Simplify right side
    490,104.90x = 242,770,960,894.32
  5. Step 5: Solve for x
    x = 242,770,960,894.32/490,104.90
  6. Step 6: Final answer
    x = 495,344.90

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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.