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Finding the Fourth Proportional to 512,992.60, 769,877.70 and 335,440.60

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Solution

The fourth proportional to 512,992.60, 769,877.70 and 335,440.60 is: 503,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,992.60 : 769,877.70 = 335,440.60 : x
  2. Step 2: Convert to fraction form
    512,992.60/769,877.70 = 335,440.60/x
  3. Step 3: Cross multiply
    512,992.60x = 769,877.70 × 335,440.60
  4. Step 4: Simplify right side
    512,992.60x = 258,248,237,614.62
  5. Step 5: Solve for x
    x = 258,248,237,614.62/512,992.60
  6. Step 6: Final answer
    x = 503,415.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.