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Finding the Fourth Proportional to 391,550.96, 540,600.48 and 300,744.43

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Solution

The fourth proportional to 391,550.96, 540,600.48 and 300,744.43 is: 415,227.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,550.96 : 540,600.48 = 300,744.43 : x
  2. Step 2: Convert to fraction form
    391,550.96/540,600.48 = 300,744.43/x
  3. Step 3: Cross multiply
    391,550.96x = 540,600.48 × 300,744.43
  4. Step 4: Simplify right side
    391,550.96x = 162,582,581,863.83
  5. Step 5: Solve for x
    x = 162,582,581,863.83/391,550.96
  6. Step 6: Final answer
    x = 415,227.13

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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.