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Finding the Fourth Proportional to 326,002.40, 488,420.40 and 275,847.20

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Solution

The fourth proportional to 326,002.40, 488,420.40 and 275,847.20 is: 413,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,002.40 : 488,420.40 = 275,847.20 : x
  2. Step 2: Convert to fraction form
    326,002.40/488,420.40 = 275,847.20/x
  3. Step 3: Cross multiply
    326,002.40x = 488,420.40 × 275,847.20
  4. Step 4: Simplify right side
    326,002.40x = 134,729,399,762.88
  5. Step 5: Solve for x
    x = 134,729,399,762.88/326,002.40
  6. Step 6: Final answer
    x = 413,277.32

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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.