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Finding the Fourth Proportional to 538,321.48, 742,884.48 and 293,305.12

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Solution

The fourth proportional to 538,321.48, 742,884.48 and 293,305.12 is: 404,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,321.48 : 742,884.48 = 293,305.12 : x
  2. Step 2: Convert to fraction form
    538,321.48/742,884.48 = 293,305.12/x
  3. Step 3: Cross multiply
    538,321.48x = 742,884.48 × 293,305.12
  4. Step 4: Simplify right side
    538,321.48x = 217,891,821,552.54
  5. Step 5: Solve for x
    x = 217,891,821,552.54/538,321.48
  6. Step 6: Final answer
    x = 404,761.52

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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.