Home / 1,022,722.38-1,534,305-391,636.20

Finding the Fourth Proportional to 1,022,722.38, 1,534,305 and 391,636.20

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Solution

The fourth proportional to 1,022,722.38, 1,534,305 and 391,636.20 is: 587,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,722.38 : 1,534,305 = 391,636.20 : x
  2. Step 2: Convert to fraction form
    1,022,722.38/1,534,305 = 391,636.20/x
  3. Step 3: Cross multiply
    1,022,722.38x = 1,534,305 × 391,636.20
  4. Step 4: Simplify right side
    1,022,722.38x = 600,889,379,841
  5. Step 5: Solve for x
    x = 600,889,379,841/1,022,722.38
  6. Step 6: Final answer
    x = 587,539.09

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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.