Home / 1,180,815.60-1,629,390.96-664,469.76

Finding the Fourth Proportional to 1,180,815.60, 1,629,390.96 and 664,469.76

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Solution

The fourth proportional to 1,180,815.60, 1,629,390.96 and 664,469.76 is: 916,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,815.60 : 1,629,390.96 = 664,469.76 : x
  2. Step 2: Convert to fraction form
    1,180,815.60/1,629,390.96 = 664,469.76/x
  3. Step 3: Cross multiply
    1,180,815.60x = 1,629,390.96 × 664,469.76
  4. Step 4: Simplify right side
    1,180,815.60x = 1,082,681,020,137.37
  5. Step 5: Solve for x
    x = 1,082,681,020,137.37/1,180,815.60
  6. Step 6: Final answer
    x = 916,892.54

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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.