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Finding the Fourth Proportional to 613,125.92, 919,678.26 and 275,927.96

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Solution

The fourth proportional to 613,125.92, 919,678.26 and 275,927.96 is: 413,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,125.92 : 919,678.26 = 275,927.96 : x
  2. Step 2: Convert to fraction form
    613,125.92/919,678.26 = 275,927.96/x
  3. Step 3: Cross multiply
    613,125.92x = 919,678.26 × 275,927.96
  4. Step 4: Simplify right side
    613,125.92x = 253,764,946,138.15
  5. Step 5: Solve for x
    x = 253,764,946,138.15/613,125.92
  6. Step 6: Final answer
    x = 413,887.16

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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.