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Finding the Fourth Proportional to 502,537.65, 693,663.57 and 321,736.54

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Solution

The fourth proportional to 502,537.65, 693,663.57 and 321,736.54 is: 444,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,537.65 : 693,663.57 = 321,736.54 : x
  2. Step 2: Convert to fraction form
    502,537.65/693,663.57 = 321,736.54/x
  3. Step 3: Cross multiply
    502,537.65x = 693,663.57 × 321,736.54
  4. Step 4: Simplify right side
    502,537.65x = 223,176,916,935.85
  5. Step 5: Solve for x
    x = 223,176,916,935.85/502,537.65
  6. Step 6: Final answer
    x = 444,099.89

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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.