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Finding the Fourth Proportional to 695,209, 959,388.42 and 377,257

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Solution

The fourth proportional to 695,209, 959,388.42 and 377,257 is: 520,614.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,209 : 959,388.42 = 377,257 : x
  2. Step 2: Convert to fraction form
    695,209/959,388.42 = 377,257/x
  3. Step 3: Cross multiply
    695,209x = 959,388.42 × 377,257
  4. Step 4: Simplify right side
    695,209x = 361,935,997,163.94
  5. Step 5: Solve for x
    x = 361,935,997,163.94/695,209
  6. Step 6: Final answer
    x = 520,614.66

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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.