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Finding the Fourth Proportional to 606,861.80, 910,511.40 and 252,130.40

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Solution

The fourth proportional to 606,861.80, 910,511.40 and 252,130.40 is: 378,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,861.80 : 910,511.40 = 252,130.40 : x
  2. Step 2: Convert to fraction form
    606,861.80/910,511.40 = 252,130.40/x
  3. Step 3: Cross multiply
    606,861.80x = 910,511.40 × 252,130.40
  4. Step 4: Simplify right side
    606,861.80x = 229,567,603,486.56
  5. Step 5: Solve for x
    x = 229,567,603,486.56/606,861.80
  6. Step 6: Final answer
    x = 378,286.46

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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.