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Finding the Fourth Proportional to 635,320.82, 876,771.33 and 380,666.54

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Solution

The fourth proportional to 635,320.82, 876,771.33 and 380,666.54 is: 525,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,320.82 : 876,771.33 = 380,666.54 : x
  2. Step 2: Convert to fraction form
    635,320.82/876,771.33 = 380,666.54/x
  3. Step 3: Cross multiply
    635,320.82x = 876,771.33 × 380,666.54
  4. Step 4: Simplify right side
    635,320.82x = 333,757,508,562.30
  5. Step 5: Solve for x
    x = 333,757,508,562.30/635,320.82
  6. Step 6: Final answer
    x = 525,336.96

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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.