Home / 432,086.20-648,129.30-327,110.20

Finding the Fourth Proportional to 432,086.20, 648,129.30 and 327,110.20

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Solution

The fourth proportional to 432,086.20, 648,129.30 and 327,110.20 is: 490,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,086.20 : 648,129.30 = 327,110.20 : x
  2. Step 2: Convert to fraction form
    432,086.20/648,129.30 = 327,110.20/x
  3. Step 3: Cross multiply
    432,086.20x = 648,129.30 × 327,110.20
  4. Step 4: Simplify right side
    432,086.20x = 212,009,704,948.86
  5. Step 5: Solve for x
    x = 212,009,704,948.86/432,086.20
  6. Step 6: Final answer
    x = 490,665.30

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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.