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Finding the Fourth Proportional to 696,256, 960,839.04 and 378,304

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Solution

The fourth proportional to 696,256, 960,839.04 and 378,304 is: 522,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,256 : 960,839.04 = 378,304 : x
  2. Step 2: Convert to fraction form
    696,256/960,839.04 = 378,304/x
  3. Step 3: Cross multiply
    696,256x = 960,839.04 × 378,304
  4. Step 4: Simplify right side
    696,256x = 363,489,252,188.16
  5. Step 5: Solve for x
    x = 363,489,252,188.16/696,256
  6. Step 6: Final answer
    x = 522,062.65

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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.