Home / 449,321.41-673,649.20-212,387.23

Finding the Fourth Proportional to 449,321.41, 673,649.20 and 212,387.23

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Solution

The fourth proportional to 449,321.41, 673,649.20 and 212,387.23 is: 318,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,321.41 : 673,649.20 = 212,387.23 : x
  2. Step 2: Convert to fraction form
    449,321.41/673,649.20 = 212,387.23/x
  3. Step 3: Cross multiply
    449,321.41x = 673,649.20 × 212,387.23
  4. Step 4: Simplify right side
    449,321.41x = 143,074,487,579.72
  5. Step 5: Solve for x
    x = 143,074,487,579.72/449,321.41
  6. Step 6: Final answer
    x = 318,423.48

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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.