Home / 827,999.20-1,241,998.80-449,101.45

Finding the Fourth Proportional to 827,999.20, 1,241,998.80 and 449,101.45

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Solution

The fourth proportional to 827,999.20, 1,241,998.80 and 449,101.45 is: 673,652.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,999.20 : 1,241,998.80 = 449,101.45 : x
  2. Step 2: Convert to fraction form
    827,999.20/1,241,998.80 = 449,101.45/x
  3. Step 3: Cross multiply
    827,999.20x = 1,241,998.80 × 449,101.45
  4. Step 4: Simplify right side
    827,999.20x = 557,783,461,978.26
  5. Step 5: Solve for x
    x = 557,783,461,978.26/827,999.20
  6. Step 6: Final answer
    x = 673,652.18

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Similar ratio
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1.5x scale

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.