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Finding the Fourth Proportional to 695,204.48, 959,402.40 and 393,392

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Solution

The fourth proportional to 695,204.48, 959,402.40 and 393,392 is: 542,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,204.48 : 959,402.40 = 393,392 : x
  2. Step 2: Convert to fraction form
    695,204.48/959,402.40 = 393,392/x
  3. Step 3: Cross multiply
    695,204.48x = 959,402.40 × 393,392
  4. Step 4: Simplify right side
    695,204.48x = 377,421,228,940.80
  5. Step 5: Solve for x
    x = 377,421,228,940.80/695,204.48
  6. Step 6: Final answer
    x = 542,892.40

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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.