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Finding the Fourth Proportional to 572,593.20, 858,889.80 and 320,650.80

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Solution

The fourth proportional to 572,593.20, 858,889.80 and 320,650.80 is: 480,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,593.20 : 858,889.80 = 320,650.80 : x
  2. Step 2: Convert to fraction form
    572,593.20/858,889.80 = 320,650.80/x
  3. Step 3: Cross multiply
    572,593.20x = 858,889.80 × 320,650.80
  4. Step 4: Simplify right side
    572,593.20x = 275,403,701,481.84
  5. Step 5: Solve for x
    x = 275,403,701,481.84/572,593.20
  6. Step 6: Final answer
    x = 480,976.20

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Similar ratio
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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.