Home / 769,481.02-1,154,221.53-208,515.52

Finding the Fourth Proportional to 769,481.02, 1,154,221.53 and 208,515.52

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Solution

The fourth proportional to 769,481.02, 1,154,221.53 and 208,515.52 is: 312,773.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,481.02 : 1,154,221.53 = 208,515.52 : x
  2. Step 2: Convert to fraction form
    769,481.02/1,154,221.53 = 208,515.52/x
  3. Step 3: Cross multiply
    769,481.02x = 1,154,221.53 × 208,515.52
  4. Step 4: Simplify right side
    769,481.02x = 240,673,102,523.15
  5. Step 5: Solve for x
    x = 240,673,102,523.15/769,481.02
  6. Step 6: Final answer
    x = 312,773.28

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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.