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Finding the Fourth Proportional to 538,390.45, 743,011.41 and 296,672.82

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Solution

The fourth proportional to 538,390.45, 743,011.41 and 296,672.82 is: 409,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,390.45 : 743,011.41 = 296,672.82 : x
  2. Step 2: Convert to fraction form
    538,390.45/743,011.41 = 296,672.82/x
  3. Step 3: Cross multiply
    538,390.45x = 743,011.41 × 296,672.82
  4. Step 4: Simplify right side
    538,390.45x = 220,431,290,296.88
  5. Step 5: Solve for x
    x = 220,431,290,296.88/538,390.45
  6. Step 6: Final answer
    x = 409,426.45

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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.