Home / 920,256.80-1,380,459.00-321,204.69

Finding the Fourth Proportional to 920,256.80, 1,380,459.00 and 321,204.69

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Solution

The fourth proportional to 920,256.80, 1,380,459.00 and 321,204.69 is: 481,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,256.80 : 1,380,459.00 = 321,204.69 : x
  2. Step 2: Convert to fraction form
    920,256.80/1,380,459.00 = 321,204.69/x
  3. Step 3: Cross multiply
    920,256.80x = 1,380,459.00 × 321,204.69
  4. Step 4: Simplify right side
    920,256.80x = 443,409,906,357.23
  5. Step 5: Solve for x
    x = 443,409,906,357.23/920,256.80
  6. Step 6: Final answer
    x = 481,832.80

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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.