Home / 455,217.60-682,826.40-219,021.60

Finding the Fourth Proportional to 455,217.60, 682,826.40 and 219,021.60

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Solution

The fourth proportional to 455,217.60, 682,826.40 and 219,021.60 is: 328,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,217.60 : 682,826.40 = 219,021.60 : x
  2. Step 2: Convert to fraction form
    455,217.60/682,826.40 = 219,021.60/x
  3. Step 3: Cross multiply
    455,217.60x = 682,826.40 × 219,021.60
  4. Step 4: Simplify right side
    455,217.60x = 149,553,730,650.24
  5. Step 5: Solve for x
    x = 149,553,730,650.24/455,217.60
  6. Step 6: Final answer
    x = 328,532.40

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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.