Home / 1,123,313.20-1,684,969.80-324,620.80

Finding the Fourth Proportional to 1,123,313.20, 1,684,969.80 and 324,620.80

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Solution

The fourth proportional to 1,123,313.20, 1,684,969.80 and 324,620.80 is: 486,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,313.20 : 1,684,969.80 = 324,620.80 : x
  2. Step 2: Convert to fraction form
    1,123,313.20/1,684,969.80 = 324,620.80/x
  3. Step 3: Cross multiply
    1,123,313.20x = 1,684,969.80 × 324,620.80
  4. Step 4: Simplify right side
    1,123,313.20x = 546,976,244,451.84
  5. Step 5: Solve for x
    x = 546,976,244,451.84/1,123,313.20
  6. Step 6: Final answer
    x = 486,931.20

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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.