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Finding the Fourth Proportional to 515,860.70, 773,791.05 and 460,748.30

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Solution

The fourth proportional to 515,860.70, 773,791.05 and 460,748.30 is: 691,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,860.70 : 773,791.05 = 460,748.30 : x
  2. Step 2: Convert to fraction form
    515,860.70/773,791.05 = 460,748.30/x
  3. Step 3: Cross multiply
    515,860.70x = 773,791.05 × 460,748.30
  4. Step 4: Simplify right side
    515,860.70x = 356,522,910,842.72
  5. Step 5: Solve for x
    x = 356,522,910,842.72/515,860.70
  6. Step 6: Final answer
    x = 691,122.45

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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.