Home / 853,482.41-1,280,414.24-321,008.05

Finding the Fourth Proportional to 853,482.41, 1,280,414.24 and 321,008.05

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Solution

The fourth proportional to 853,482.41, 1,280,414.24 and 321,008.05 is: 481,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,482.41 : 1,280,414.24 = 321,008.05 : x
  2. Step 2: Convert to fraction form
    853,482.41/1,280,414.24 = 321,008.05/x
  3. Step 3: Cross multiply
    853,482.41x = 1,280,414.24 × 321,008.05
  4. Step 4: Simplify right side
    853,482.41x = 411,023,270,367.52
  5. Step 5: Solve for x
    x = 411,023,270,367.52/853,482.41
  6. Step 6: Final answer
    x = 481,583.77

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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.