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Finding the Fourth Proportional to 719,564.92, 1,079,150.20 and 270,251

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Solution

The fourth proportional to 719,564.92, 1,079,150.20 and 270,251 is: 405,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,564.92 : 1,079,150.20 = 270,251 : x
  2. Step 2: Convert to fraction form
    719,564.92/1,079,150.20 = 270,251/x
  3. Step 3: Cross multiply
    719,564.92x = 1,079,150.20 × 270,251
  4. Step 4: Simplify right side
    719,564.92x = 291,641,420,700.20
  5. Step 5: Solve for x
    x = 291,641,420,700.20/719,564.92
  6. Step 6: Final answer
    x = 405,302.44

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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.