Home / 1,515,576.68-2,091,346.82-836,469.40

Finding the Fourth Proportional to 1,515,576.68, 2,091,346.82 and 836,469.40

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Solution

The fourth proportional to 1,515,576.68, 2,091,346.82 and 836,469.40 is: 1,154,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,576.68 : 2,091,346.82 = 836,469.40 : x
  2. Step 2: Convert to fraction form
    1,515,576.68/2,091,346.82 = 836,469.40/x
  3. Step 3: Cross multiply
    1,515,576.68x = 2,091,346.82 × 836,469.40
  4. Step 4: Simplify right side
    1,515,576.68x = 1,749,347,619,717.31
  5. Step 5: Solve for x
    x = 1,749,347,619,717.31/1,515,576.68
  6. Step 6: Final answer
    x = 1,154,245.54

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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.