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Finding the Fourth Proportional to 538,908.36, 743,683.19 and 297,213.27

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Solution

The fourth proportional to 538,908.36, 743,683.19 and 297,213.27 is: 410,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,908.36 : 743,683.19 = 297,213.27 : x
  2. Step 2: Convert to fraction form
    538,908.36/743,683.19 = 297,213.27/x
  3. Step 3: Cross multiply
    538,908.36x = 743,683.19 × 297,213.27
  4. Step 4: Simplify right side
    538,908.36x = 221,032,511,257.87
  5. Step 5: Solve for x
    x = 221,032,511,257.87/538,908.36
  6. Step 6: Final answer
    x = 410,148.60

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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.