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Finding the Fourth Proportional to 483,062.40, 723,211.20 and 427,766.40

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Solution

The fourth proportional to 483,062.40, 723,211.20 and 427,766.40 is: 640,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,062.40 : 723,211.20 = 427,766.40 : x
  2. Step 2: Convert to fraction form
    483,062.40/723,211.20 = 427,766.40/x
  3. Step 3: Cross multiply
    483,062.40x = 723,211.20 × 427,766.40
  4. Step 4: Simplify right side
    483,062.40x = 309,365,451,463.68
  5. Step 5: Solve for x
    x = 309,365,451,463.68/483,062.40
  6. Step 6: Final answer
    x = 640,425.44

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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.