Home / 786,028.40-1,179,272.20-253,537.64

Finding the Fourth Proportional to 786,028.40, 1,179,272.20 and 253,537.64

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Solution

The fourth proportional to 786,028.40, 1,179,272.20 and 253,537.64 is: 380,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,028.40 : 1,179,272.20 = 253,537.64 : x
  2. Step 2: Convert to fraction form
    786,028.40/1,179,272.20 = 253,537.64/x
  3. Step 3: Cross multiply
    786,028.40x = 1,179,272.20 × 253,537.64
  4. Step 4: Simplify right side
    786,028.40x = 298,989,890,505.61
  5. Step 5: Solve for x
    x = 298,989,890,505.61/786,028.40
  6. Step 6: Final answer
    x = 380,380.52

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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.