Home / 1,326,243.38-1,989,753.21-427,667.04

Finding the Fourth Proportional to 1,326,243.38, 1,989,753.21 and 427,667.04

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Solution

The fourth proportional to 1,326,243.38, 1,989,753.21 and 427,667.04 is: 641,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,243.38 : 1,989,753.21 = 427,667.04 : x
  2. Step 2: Convert to fraction form
    1,326,243.38/1,989,753.21 = 427,667.04/x
  3. Step 3: Cross multiply
    1,326,243.38x = 1,989,753.21 × 427,667.04
  4. Step 4: Simplify right side
    1,326,243.38x = 850,951,865,651.20
  5. Step 5: Solve for x
    x = 850,951,865,651.20/1,326,243.38
  6. Step 6: Final answer
    x = 641,625.72

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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.