Home / 1,438,704.60-2,157,884.70-1,119,175.72

Finding the Fourth Proportional to 1,438,704.60, 2,157,884.70 and 1,119,175.72

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Solution

The fourth proportional to 1,438,704.60, 2,157,884.70 and 1,119,175.72 is: 1,678,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,704.60 : 2,157,884.70 = 1,119,175.72 : x
  2. Step 2: Convert to fraction form
    1,438,704.60/2,157,884.70 = 1,119,175.72/x
  3. Step 3: Cross multiply
    1,438,704.60x = 2,157,884.70 × 1,119,175.72
  4. Step 4: Simplify right side
    1,438,704.60x = 2,415,052,162,799.48
  5. Step 5: Solve for x
    x = 2,415,052,162,799.48/1,438,704.60
  6. Step 6: Final answer
    x = 1,678,629.62

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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.