Home / 538,629.40-743,313.78-296,921.56

Finding the Fourth Proportional to 538,629.40, 743,313.78 and 296,921.56

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Solution

The fourth proportional to 538,629.40, 743,313.78 and 296,921.56 is: 409,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,629.40 : 743,313.78 = 296,921.56 : x
  2. Step 2: Convert to fraction form
    538,629.40/743,313.78 = 296,921.56/x
  3. Step 3: Cross multiply
    538,629.40x = 743,313.78 × 296,921.56
  4. Step 4: Simplify right side
    538,629.40x = 220,705,887,127.10
  5. Step 5: Solve for x
    x = 220,705,887,127.10/538,629.40
  6. Step 6: Final answer
    x = 409,754.62

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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.