Home / 300,649.20-448,621.14-298,899.60

Finding the Fourth Proportional to 300,649.20, 448,621.14 and 298,899.60

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Solution

The fourth proportional to 300,649.20, 448,621.14 and 298,899.60 is: 446,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,649.20 : 448,621.14 = 298,899.60 : x
  2. Step 2: Convert to fraction form
    300,649.20/448,621.14 = 298,899.60/x
  3. Step 3: Cross multiply
    300,649.20x = 448,621.14 × 298,899.60
  4. Step 4: Simplify right side
    300,649.20x = 134,092,679,297.54
  5. Step 5: Solve for x
    x = 134,092,679,297.54/300,649.20
  6. Step 6: Final answer
    x = 446,010.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.