Home / 1,485,174.72-2,228,241.86-686,979.87

Finding the Fourth Proportional to 1,485,174.72, 2,228,241.86 and 686,979.87

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Solution

The fourth proportional to 1,485,174.72, 2,228,241.86 and 686,979.87 is: 1,030,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,174.72 : 2,228,241.86 = 686,979.87 : x
  2. Step 2: Convert to fraction form
    1,485,174.72/2,228,241.86 = 686,979.87/x
  3. Step 3: Cross multiply
    1,485,174.72x = 2,228,241.86 × 686,979.87
  4. Step 4: Simplify right side
    1,485,174.72x = 1,530,757,294,096.73
  5. Step 5: Solve for x
    x = 1,530,757,294,096.73/1,485,174.72
  6. Step 6: Final answer
    x = 1,030,691.72

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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.