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Finding the Fourth Proportional to 694,401, 958,279.14 and 376,449

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Solution

The fourth proportional to 694,401, 958,279.14 and 376,449 is: 519,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,401 : 958,279.14 = 376,449 : x
  2. Step 2: Convert to fraction form
    694,401/958,279.14 = 376,449/x
  3. Step 3: Cross multiply
    694,401x = 958,279.14 × 376,449
  4. Step 4: Simplify right side
    694,401x = 360,743,223,973.86
  5. Step 5: Solve for x
    x = 360,743,223,973.86/694,401
  6. Step 6: Final answer
    x = 519,502.74

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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.