Home / 828,440.64-1,242,664.20-252,069.68

Finding the Fourth Proportional to 828,440.64, 1,242,664.20 and 252,069.68

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Solution

The fourth proportional to 828,440.64, 1,242,664.20 and 252,069.68 is: 378,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,440.64 : 1,242,664.20 = 252,069.68 : x
  2. Step 2: Convert to fraction form
    828,440.64/1,242,664.20 = 252,069.68/x
  3. Step 3: Cross multiply
    828,440.64x = 1,242,664.20 × 252,069.68
  4. Step 4: Simplify right side
    828,440.64x = 313,237,967,241.46
  5. Step 5: Solve for x
    x = 313,237,967,241.46/828,440.64
  6. Step 6: Final answer
    x = 378,105.51

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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.