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Finding the Fourth Proportional to 694,406, 958,286.04 and 376,454

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Solution

The fourth proportional to 694,406, 958,286.04 and 376,454 is: 519,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,406 : 958,286.04 = 376,454 : x
  2. Step 2: Convert to fraction form
    694,406/958,286.04 = 376,454/x
  3. Step 3: Cross multiply
    694,406x = 958,286.04 × 376,454
  4. Step 4: Simplify right side
    694,406x = 360,750,612,902.16
  5. Step 5: Solve for x
    x = 360,750,612,902.16/694,406
  6. Step 6: Final answer
    x = 519,509.64

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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.