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Finding the Fourth Proportional to 694,212, 958,013.20 and 376,260

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Solution

The fourth proportional to 694,212, 958,013.20 and 376,260 is: 519,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,212 : 958,013.20 = 376,260 : x
  2. Step 2: Convert to fraction form
    694,212/958,013.20 = 376,260/x
  3. Step 3: Cross multiply
    694,212x = 958,013.20 × 376,260
  4. Step 4: Simplify right side
    694,212x = 360,462,046,632
  5. Step 5: Solve for x
    x = 360,462,046,632/694,212
  6. Step 6: Final answer
    x = 519,239.15

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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.