Home / 712,192.22-982,825.48-389,922.78

Finding the Fourth Proportional to 712,192.22, 982,825.48 and 389,922.78

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Solution

The fourth proportional to 712,192.22, 982,825.48 and 389,922.78 is: 538,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,192.22 : 982,825.48 = 389,922.78 : x
  2. Step 2: Convert to fraction form
    712,192.22/982,825.48 = 389,922.78/x
  3. Step 3: Cross multiply
    712,192.22x = 982,825.48 × 389,922.78
  4. Step 4: Simplify right side
    712,192.22x = 383,226,043,416.43
  5. Step 5: Solve for x
    x = 383,226,043,416.43/712,192.22
  6. Step 6: Final answer
    x = 538,093.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.