Home / 1,439,049-2,158,197.24-427,898.64

Finding the Fourth Proportional to 1,439,049, 2,158,197.24 and 427,898.64

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Solution

The fourth proportional to 1,439,049, 2,158,197.24 and 427,898.64 is: 641,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,049 : 2,158,197.24 = 427,898.64 : x
  2. Step 2: Convert to fraction form
    1,439,049/2,158,197.24 = 427,898.64/x
  3. Step 3: Cross multiply
    1,439,049x = 2,158,197.24 × 427,898.64
  4. Step 4: Simplify right side
    1,439,049x = 923,489,663,847.75
  5. Step 5: Solve for x
    x = 923,489,663,847.75/1,439,049
  6. Step 6: Final answer
    x = 641,736.08

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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.