Home / 427,580.83-641,557.28-268,022.44

Finding the Fourth Proportional to 427,580.83, 641,557.28 and 268,022.44

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Solution

The fourth proportional to 427,580.83, 641,557.28 and 268,022.44 is: 402,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,580.83 : 641,557.28 = 268,022.44 : x
  2. Step 2: Convert to fraction form
    427,580.83/641,557.28 = 268,022.44/x
  3. Step 3: Cross multiply
    427,580.83x = 641,557.28 × 268,022.44
  4. Step 4: Simplify right side
    427,580.83x = 171,951,747,585.36
  5. Step 5: Solve for x
    x = 171,951,747,585.36/427,580.83
  6. Step 6: Final answer
    x = 402,150.27

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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.