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Finding the Fourth Proportional to 535,398.39, 738,872.96 and 320,496.89

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Solution

The fourth proportional to 535,398.39, 738,872.96 and 320,496.89 is: 442,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,398.39 : 738,872.96 = 320,496.89 : x
  2. Step 2: Convert to fraction form
    535,398.39/738,872.96 = 320,496.89/x
  3. Step 3: Cross multiply
    535,398.39x = 738,872.96 × 320,496.89
  4. Step 4: Simplify right side
    535,398.39x = 236,806,480,488.25
  5. Step 5: Solve for x
    x = 236,806,480,488.25/535,398.39
  6. Step 6: Final answer
    x = 442,299.58

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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.