Home / 538,425.21-743,031.77-296,716.45

Finding the Fourth Proportional to 538,425.21, 743,031.77 and 296,716.45

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Solution

The fourth proportional to 538,425.21, 743,031.77 and 296,716.45 is: 409,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,425.21 : 743,031.77 = 296,716.45 : x
  2. Step 2: Convert to fraction form
    538,425.21/743,031.77 = 296,716.45/x
  3. Step 3: Cross multiply
    538,425.21x = 743,031.77 × 296,716.45
  4. Step 4: Simplify right side
    538,425.21x = 220,469,749,031.62
  5. Step 5: Solve for x
    x = 220,469,749,031.62/538,425.21
  6. Step 6: Final answer
    x = 409,471.45

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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.