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Finding the Fourth Proportional to 397,960.99, 549,527.51 and 385,092.25

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Solution

The fourth proportional to 397,960.99, 549,527.51 and 385,092.25 is: 531,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,960.99 : 549,527.51 = 385,092.25 : x
  2. Step 2: Convert to fraction form
    397,960.99/549,527.51 = 385,092.25/x
  3. Step 3: Cross multiply
    397,960.99x = 549,527.51 × 385,092.25
  4. Step 4: Simplify right side
    397,960.99x = 211,618,781,739.37
  5. Step 5: Solve for x
    x = 211,618,781,739.37/397,960.99
  6. Step 6: Final answer
    x = 531,757.61

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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.