Home / 920,267.02-1,380,234.33-321,399.39

Finding the Fourth Proportional to 920,267.02, 1,380,234.33 and 321,399.39

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Solution

The fourth proportional to 920,267.02, 1,380,234.33 and 321,399.39 is: 482,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,267.02 : 1,380,234.33 = 321,399.39 : x
  2. Step 2: Convert to fraction form
    920,267.02/1,380,234.33 = 321,399.39/x
  3. Step 3: Cross multiply
    920,267.02x = 1,380,234.33 × 321,399.39
  4. Step 4: Simplify right side
    920,267.02x = 443,606,476,894.94
  5. Step 5: Solve for x
    x = 443,606,476,894.94/920,267.02
  6. Step 6: Final answer
    x = 482,041.05

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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.