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Finding the Fourth Proportional to 689,902.52, 952,065.24 and 388,096.52

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Solution

The fourth proportional to 689,902.52, 952,065.24 and 388,096.52 is: 535,573.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,902.52 : 952,065.24 = 388,096.52 : x
  2. Step 2: Convert to fraction form
    689,902.52/952,065.24 = 388,096.52/x
  3. Step 3: Cross multiply
    689,902.52x = 952,065.24 × 388,096.52
  4. Step 4: Simplify right side
    689,902.52x = 369,493,206,456.97
  5. Step 5: Solve for x
    x = 369,493,206,456.97/689,902.52
  6. Step 6: Final answer
    x = 535,573.06

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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.