Home / 873,118.92-1,204,892.64-491,145.60

Finding the Fourth Proportional to 873,118.92, 1,204,892.64 and 491,145.60

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Solution

The fourth proportional to 873,118.92, 1,204,892.64 and 491,145.60 is: 677,774.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,118.92 : 1,204,892.64 = 491,145.60 : x
  2. Step 2: Convert to fraction form
    873,118.92/1,204,892.64 = 491,145.60/x
  3. Step 3: Cross multiply
    873,118.92x = 1,204,892.64 × 491,145.60
  4. Step 4: Simplify right side
    873,118.92x = 591,777,718,608.38
  5. Step 5: Solve for x
    x = 591,777,718,608.38/873,118.92
  6. Step 6: Final answer
    x = 677,774.48

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.