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Finding the Fourth Proportional to 719,563.92, 1,079,148.70 and 270,250

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Solution

The fourth proportional to 719,563.92, 1,079,148.70 and 270,250 is: 405,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,563.92 : 1,079,148.70 = 270,250 : x
  2. Step 2: Convert to fraction form
    719,563.92/1,079,148.70 = 270,250/x
  3. Step 3: Cross multiply
    719,563.92x = 1,079,148.70 × 270,250
  4. Step 4: Simplify right side
    719,563.92x = 291,639,936,175
  5. Step 5: Solve for x
    x = 291,639,936,175/719,563.92
  6. Step 6: Final answer
    x = 405,300.94

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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.