Home / 827,939.60-1,241,669-322,387.60

Finding the Fourth Proportional to 827,939.60, 1,241,669 and 322,387.60

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Solution

The fourth proportional to 827,939.60, 1,241,669 and 322,387.60 is: 483,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,939.60 : 1,241,669 = 322,387.60 : x
  2. Step 2: Convert to fraction form
    827,939.60/1,241,669 = 322,387.60/x
  3. Step 3: Cross multiply
    827,939.60x = 1,241,669 × 322,387.60
  4. Step 4: Simplify right side
    827,939.60x = 400,298,688,904.40
  5. Step 5: Solve for x
    x = 400,298,688,904.40/827,939.60
  6. Step 6: Final answer
    x = 483,487.79

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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.