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Finding the Fourth Proportional to 513,044.80, 768,896.10 and 275,876.80

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Solution

The fourth proportional to 513,044.80, 768,896.10 and 275,876.80 is: 413,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,044.80 : 768,896.10 = 275,876.80 : x
  2. Step 2: Convert to fraction form
    513,044.80/768,896.10 = 275,876.80/x
  3. Step 3: Cross multiply
    513,044.80x = 768,896.10 × 275,876.80
  4. Step 4: Simplify right side
    513,044.80x = 212,120,595,600.48
  5. Step 5: Solve for x
    x = 212,120,595,600.48/513,044.80
  6. Step 6: Final answer
    x = 413,454.33

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1.5x scale

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.