Home / 853,489.04-1,280,577.82-379,850.44

Finding the Fourth Proportional to 853,489.04, 1,280,577.82 and 379,850.44

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Solution

The fourth proportional to 853,489.04, 1,280,577.82 and 379,850.44 is: 569,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,489.04 : 1,280,577.82 = 379,850.44 : x
  2. Step 2: Convert to fraction form
    853,489.04/1,280,577.82 = 379,850.44/x
  3. Step 3: Cross multiply
    853,489.04x = 1,280,577.82 × 379,850.44
  4. Step 4: Simplify right side
    853,489.04x = 486,428,048,381.24
  5. Step 5: Solve for x
    x = 486,428,048,381.24/853,489.04
  6. Step 6: Final answer
    x = 569,928.87

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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.