Home / 862,779.60-1,294,169.40-231,757.20

Finding the Fourth Proportional to 862,779.60, 1,294,169.40 and 231,757.20

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Solution

The fourth proportional to 862,779.60, 1,294,169.40 and 231,757.20 is: 347,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,779.60 : 1,294,169.40 = 231,757.20 : x
  2. Step 2: Convert to fraction form
    862,779.60/1,294,169.40 = 231,757.20/x
  3. Step 3: Cross multiply
    862,779.60x = 1,294,169.40 × 231,757.20
  4. Step 4: Simplify right side
    862,779.60x = 299,933,076,469.68
  5. Step 5: Solve for x
    x = 299,933,076,469.68/862,779.60
  6. Step 6: Final answer
    x = 347,635.80

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Double scale
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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.