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Finding the Fourth Proportional to 561,625.90, 775,183.02 and 320,051.80

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Solution

The fourth proportional to 561,625.90, 775,183.02 and 320,051.80 is: 441,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,625.90 : 775,183.02 = 320,051.80 : x
  2. Step 2: Convert to fraction form
    561,625.90/775,183.02 = 320,051.80/x
  3. Step 3: Cross multiply
    561,625.90x = 775,183.02 × 320,051.80
  4. Step 4: Simplify right side
    561,625.90x = 248,098,720,880.44
  5. Step 5: Solve for x
    x = 248,098,720,880.44/561,625.90
  6. Step 6: Final answer
    x = 441,750.85

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1.5x scale

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.