Home / 455,331.60-682,997.40-219,135.60

Finding the Fourth Proportional to 455,331.60, 682,997.40 and 219,135.60

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Solution

The fourth proportional to 455,331.60, 682,997.40 and 219,135.60 is: 328,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,331.60 : 682,997.40 = 219,135.60 : x
  2. Step 2: Convert to fraction form
    455,331.60/682,997.40 = 219,135.60/x
  3. Step 3: Cross multiply
    455,331.60x = 682,997.40 × 219,135.60
  4. Step 4: Simplify right side
    455,331.60x = 149,669,045,047.44
  5. Step 5: Solve for x
    x = 149,669,045,047.44/455,331.60
  6. Step 6: Final answer
    x = 328,703.40

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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.