Home / 455,312.60-682,968.90-219,116.60

Finding the Fourth Proportional to 455,312.60, 682,968.90 and 219,116.60

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Solution

The fourth proportional to 455,312.60, 682,968.90 and 219,116.60 is: 328,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,312.60 : 682,968.90 = 219,116.60 : x
  2. Step 2: Convert to fraction form
    455,312.60/682,968.90 = 219,116.60/x
  3. Step 3: Cross multiply
    455,312.60x = 682,968.90 × 219,116.60
  4. Step 4: Simplify right side
    455,312.60x = 149,649,823,273.74
  5. Step 5: Solve for x
    x = 149,649,823,273.74/455,312.60
  6. Step 6: Final answer
    x = 328,674.90

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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.