Home / 1,203,990.14-1,806,171.81-405,209.35

Finding the Fourth Proportional to 1,203,990.14, 1,806,171.81 and 405,209.35

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Solution

The fourth proportional to 1,203,990.14, 1,806,171.81 and 405,209.35 is: 607,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,990.14 : 1,806,171.81 = 405,209.35 : x
  2. Step 2: Convert to fraction form
    1,203,990.14/1,806,171.81 = 405,209.35/x
  3. Step 3: Cross multiply
    1,203,990.14x = 1,806,171.81 × 405,209.35
  4. Step 4: Simplify right side
    1,203,990.14x = 731,877,705,118.42
  5. Step 5: Solve for x
    x = 731,877,705,118.42/1,203,990.14
  6. Step 6: Final answer
    x = 607,876.83

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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.