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Finding the Fourth Proportional to 606,136.30, 909,313.80 and 305,861.20

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Solution

The fourth proportional to 606,136.30, 909,313.80 and 305,861.20 is: 458,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,136.30 : 909,313.80 = 305,861.20 : x
  2. Step 2: Convert to fraction form
    606,136.30/909,313.80 = 305,861.20/x
  3. Step 3: Cross multiply
    606,136.30x = 909,313.80 × 305,861.20
  4. Step 4: Simplify right side
    606,136.30x = 278,123,810,044.56
  5. Step 5: Solve for x
    x = 278,123,810,044.56/606,136.30
  6. Step 6: Final answer
    x = 458,846.98

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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.