Home / 920,193.75-1,380,416.38-321,066.92

Finding the Fourth Proportional to 920,193.75, 1,380,416.38 and 321,066.92

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Solution

The fourth proportional to 920,193.75, 1,380,416.38 and 321,066.92 is: 481,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,193.75 : 1,380,416.38 = 321,066.92 : x
  2. Step 2: Convert to fraction form
    920,193.75/1,380,416.38 = 321,066.92/x
  3. Step 3: Cross multiply
    920,193.75x = 1,380,416.38 × 321,066.92
  4. Step 4: Simplify right side
    920,193.75x = 443,206,038,092.52
  5. Step 5: Solve for x
    x = 443,206,038,092.52/920,193.75
  6. Step 6: Final answer
    x = 481,644.26

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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.