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Finding the Fourth Proportional to 503,987.62, 695,469.90 and 277,633.12

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Solution

The fourth proportional to 503,987.62, 695,469.90 and 277,633.12 is: 383,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,987.62 : 695,469.90 = 277,633.12 : x
  2. Step 2: Convert to fraction form
    503,987.62/695,469.90 = 277,633.12/x
  3. Step 3: Cross multiply
    503,987.62x = 695,469.90 × 277,633.12
  4. Step 4: Simplify right side
    503,987.62x = 193,085,478,203.09
  5. Step 5: Solve for x
    x = 193,085,478,203.09/503,987.62
  6. Step 6: Final answer
    x = 383,115.52

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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.