Home / 920,266.82-1,380,732.38-321,316.22

Finding the Fourth Proportional to 920,266.82, 1,380,732.38 and 321,316.22

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Solution

The fourth proportional to 920,266.82, 1,380,732.38 and 321,316.22 is: 482,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,266.82 : 1,380,732.38 = 321,316.22 : x
  2. Step 2: Convert to fraction form
    920,266.82/1,380,732.38 = 321,316.22/x
  3. Step 3: Cross multiply
    920,266.82x = 1,380,732.38 × 321,316.22
  4. Step 4: Simplify right side
    920,266.82x = 443,651,704,456.77
  5. Step 5: Solve for x
    x = 443,651,704,456.77/920,266.82
  6. Step 6: Final answer
    x = 482,090.30

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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.