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Finding the Fourth Proportional to 609,788.62, 914,194.50 and 289,779.90

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Solution

The fourth proportional to 609,788.62, 914,194.50 and 289,779.90 is: 434,437.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,788.62 : 914,194.50 = 289,779.90 : x
  2. Step 2: Convert to fraction form
    609,788.62/914,194.50 = 289,779.90/x
  3. Step 3: Cross multiply
    609,788.62x = 914,194.50 × 289,779.90
  4. Step 4: Simplify right side
    609,788.62x = 264,915,190,790.55
  5. Step 5: Solve for x
    x = 264,915,190,790.55/609,788.62
  6. Step 6: Final answer
    x = 434,437.74

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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.