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Finding the Fourth Proportional to 545,284.68, 752,517.42 and 303,582.90

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Solution

The fourth proportional to 545,284.68, 752,517.42 and 303,582.90 is: 418,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,284.68 : 752,517.42 = 303,582.90 : x
  2. Step 2: Convert to fraction form
    545,284.68/752,517.42 = 303,582.90/x
  3. Step 3: Cross multiply
    545,284.68x = 752,517.42 × 303,582.90
  4. Step 4: Simplify right side
    545,284.68x = 228,451,420,664.12
  5. Step 5: Solve for x
    x = 228,451,420,664.12/545,284.68
  6. Step 6: Final answer
    x = 418,958.08

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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.