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Finding the Fourth Proportional to 719,847.29, 993,370.26 and 397,550.47

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Solution

The fourth proportional to 719,847.29, 993,370.26 and 397,550.47 is: 548,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,847.29 : 993,370.26 = 397,550.47 : x
  2. Step 2: Convert to fraction form
    719,847.29/993,370.26 = 397,550.47/x
  3. Step 3: Cross multiply
    719,847.29x = 993,370.26 × 397,550.47
  4. Step 4: Simplify right side
    719,847.29x = 394,914,809,865.74
  5. Step 5: Solve for x
    x = 394,914,809,865.74/719,847.29
  6. Step 6: Final answer
    x = 548,609.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.