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Finding the Fourth Proportional to 543,654.78, 750,252.87 and 298,649.87

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Solution

The fourth proportional to 543,654.78, 750,252.87 and 298,649.87 is: 412,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,654.78 : 750,252.87 = 298,649.87 : x
  2. Step 2: Convert to fraction form
    543,654.78/750,252.87 = 298,649.87/x
  3. Step 3: Cross multiply
    543,654.78x = 750,252.87 × 298,649.87
  4. Step 4: Simplify right side
    543,654.78x = 224,062,918,341.36
  5. Step 5: Solve for x
    x = 224,062,918,341.36/543,654.78
  6. Step 6: Final answer
    x = 412,141.91

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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.