Home / 325,849.40-488,774.10-280,748.60

Finding the Fourth Proportional to 325,849.40, 488,774.10 and 280,748.60

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Solution

The fourth proportional to 325,849.40, 488,774.10 and 280,748.60 is: 421,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,849.40 : 488,774.10 = 280,748.60 : x
  2. Step 2: Convert to fraction form
    325,849.40/488,774.10 = 280,748.60/x
  3. Step 3: Cross multiply
    325,849.40x = 488,774.10 × 280,748.60
  4. Step 4: Simplify right side
    325,849.40x = 137,222,644,291.26
  5. Step 5: Solve for x
    x = 137,222,644,291.26/325,849.40
  6. Step 6: Final answer
    x = 421,122.90

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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.