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Finding the Fourth Proportional to 659,008.38, 987,383.97 and 359,699.07

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Solution

The fourth proportional to 659,008.38, 987,383.97 and 359,699.07 is: 538,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,008.38 : 987,383.97 = 359,699.07 : x
  2. Step 2: Convert to fraction form
    659,008.38/987,383.97 = 359,699.07/x
  3. Step 3: Cross multiply
    659,008.38x = 987,383.97 × 359,699.07
  4. Step 4: Simplify right side
    659,008.38x = 355,161,095,741.91
  5. Step 5: Solve for x
    x = 355,161,095,741.91/659,008.38
  6. Step 6: Final answer
    x = 538,932.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.