Home / 827,629.60-1,241,329.20-266,720.80

Finding the Fourth Proportional to 827,629.60, 1,241,329.20 and 266,720.80

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Solution

The fourth proportional to 827,629.60, 1,241,329.20 and 266,720.80 is: 400,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,629.60 : 1,241,329.20 = 266,720.80 : x
  2. Step 2: Convert to fraction form
    827,629.60/1,241,329.20 = 266,720.80/x
  3. Step 3: Cross multiply
    827,629.60x = 1,241,329.20 × 266,720.80
  4. Step 4: Simplify right side
    827,629.60x = 331,088,317,287.36
  5. Step 5: Solve for x
    x = 331,088,317,287.36/827,629.60
  6. Step 6: Final answer
    x = 400,044.07

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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.