Home / 769,189.08-1,153,057.86-270,280.92

Finding the Fourth Proportional to 769,189.08, 1,153,057.86 and 270,280.92

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Solution

The fourth proportional to 769,189.08, 1,153,057.86 and 270,280.92 is: 405,166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,189.08 : 1,153,057.86 = 270,280.92 : x
  2. Step 2: Convert to fraction form
    769,189.08/1,153,057.86 = 270,280.92/x
  3. Step 3: Cross multiply
    769,189.08x = 1,153,057.86 × 270,280.92
  4. Step 4: Simplify right side
    769,189.08x = 311,649,539,214.03
  5. Step 5: Solve for x
    x = 311,649,539,214.03/769,189.08
  6. Step 6: Final answer
    x = 405,166.36

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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.