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Finding the Fourth Proportional to 538,702.34, 743,414.02 and 296,993.42

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Solution

The fourth proportional to 538,702.34, 743,414.02 and 296,993.42 is: 409,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,702.34 : 743,414.02 = 296,993.42 : x
  2. Step 2: Convert to fraction form
    538,702.34/743,414.02 = 296,993.42/x
  3. Step 3: Cross multiply
    538,702.34x = 743,414.02 × 296,993.42
  4. Step 4: Simplify right side
    538,702.34x = 220,789,072,275.75
  5. Step 5: Solve for x
    x = 220,789,072,275.75/538,702.34
  6. Step 6: Final answer
    x = 409,853.56

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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.