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Finding the Fourth Proportional to 609,004.39, 913,091.38 and 308,906.30

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Solution

The fourth proportional to 609,004.39, 913,091.38 and 308,906.30 is: 463,148.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,004.39 : 913,091.38 = 308,906.30 : x
  2. Step 2: Convert to fraction form
    609,004.39/913,091.38 = 308,906.30/x
  3. Step 3: Cross multiply
    609,004.39x = 913,091.38 × 308,906.30
  4. Step 4: Simplify right side
    609,004.39x = 282,059,673,647.71
  5. Step 5: Solve for x
    x = 282,059,673,647.71/609,004.39
  6. Step 6: Final answer
    x = 463,148.84

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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.