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Finding the Fourth Proportional to 400,002.40, 600,003.60 and 329,960.80

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Solution

The fourth proportional to 400,002.40, 600,003.60 and 329,960.80 is: 494,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,002.40 : 600,003.60 = 329,960.80 : x
  2. Step 2: Convert to fraction form
    400,002.40/600,003.60 = 329,960.80/x
  3. Step 3: Cross multiply
    400,002.40x = 600,003.60 × 329,960.80
  4. Step 4: Simplify right side
    400,002.40x = 197,977,667,858.88
  5. Step 5: Solve for x
    x = 197,977,667,858.88/400,002.40
  6. Step 6: Final answer
    x = 494,941.20

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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.