Home / 671,190.20-1,006,785.30-405,769.40

Finding the Fourth Proportional to 671,190.20, 1,006,785.30 and 405,769.40

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Solution

The fourth proportional to 671,190.20, 1,006,785.30 and 405,769.40 is: 608,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,190.20 : 1,006,785.30 = 405,769.40 : x
  2. Step 2: Convert to fraction form
    671,190.20/1,006,785.30 = 405,769.40/x
  3. Step 3: Cross multiply
    671,190.20x = 1,006,785.30 × 405,769.40
  4. Step 4: Simplify right side
    671,190.20x = 408,522,667,109.82
  5. Step 5: Solve for x
    x = 408,522,667,109.82/671,190.20
  6. Step 6: Final answer
    x = 608,654.10

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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.