Home / 1,123,321.60-1,684,982.40-324,629.20

Finding the Fourth Proportional to 1,123,321.60, 1,684,982.40 and 324,629.20

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Solution

The fourth proportional to 1,123,321.60, 1,684,982.40 and 324,629.20 is: 486,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,321.60 : 1,684,982.40 = 324,629.20 : x
  2. Step 2: Convert to fraction form
    1,123,321.60/1,684,982.40 = 324,629.20/x
  3. Step 3: Cross multiply
    1,123,321.60x = 1,684,982.40 × 324,629.20
  4. Step 4: Simplify right side
    1,123,321.60x = 546,994,488,526.08
  5. Step 5: Solve for x
    x = 546,994,488,526.08/1,123,321.60
  6. Step 6: Final answer
    x = 486,943.80

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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.