Home / 1,341,489.62-2,009,872.38-1,261,576.64

Finding the Fourth Proportional to 1,341,489.62, 2,009,872.38 and 1,261,576.64

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Solution

The fourth proportional to 1,341,489.62, 2,009,872.38 and 1,261,576.64 is: 1,890,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,489.62 : 2,009,872.38 = 1,261,576.64 : x
  2. Step 2: Convert to fraction form
    1,341,489.62/2,009,872.38 = 1,261,576.64/x
  3. Step 3: Cross multiply
    1,341,489.62x = 2,009,872.38 × 1,261,576.64
  4. Step 4: Simplify right side
    1,341,489.62x = 2,535,608,043,989.20
  5. Step 5: Solve for x
    x = 2,535,608,043,989.20/1,341,489.62
  6. Step 6: Final answer
    x = 1,890,143.62

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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.