Home / 447,789.80-671,684.70-443,642.60

Finding the Fourth Proportional to 447,789.80, 671,684.70 and 443,642.60

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Solution

The fourth proportional to 447,789.80, 671,684.70 and 443,642.60 is: 665,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,789.80 : 671,684.70 = 443,642.60 : x
  2. Step 2: Convert to fraction form
    447,789.80/671,684.70 = 443,642.60/x
  3. Step 3: Cross multiply
    447,789.80x = 671,684.70 × 443,642.60
  4. Step 4: Simplify right side
    447,789.80x = 297,987,946,688.22
  5. Step 5: Solve for x
    x = 297,987,946,688.22/447,789.80
  6. Step 6: Final answer
    x = 665,463.90

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Similar ratio
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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.