Home / 481,225.20-721,837.80-439,234.80

Finding the Fourth Proportional to 481,225.20, 721,837.80 and 439,234.80

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Solution

The fourth proportional to 481,225.20, 721,837.80 and 439,234.80 is: 658,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,225.20 : 721,837.80 = 439,234.80 : x
  2. Step 2: Convert to fraction form
    481,225.20/721,837.80 = 439,234.80/x
  3. Step 3: Cross multiply
    481,225.20x = 721,837.80 × 439,234.80
  4. Step 4: Simplify right side
    481,225.20x = 317,056,281,715.44
  5. Step 5: Solve for x
    x = 317,056,281,715.44/481,225.20
  6. Step 6: Final answer
    x = 658,852.20

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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.