Home / 463,434.87-639,487.26-259,457.43

Finding the Fourth Proportional to 463,434.87, 639,487.26 and 259,457.43

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Solution

The fourth proportional to 463,434.87, 639,487.26 and 259,457.43 is: 358,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,434.87 : 639,487.26 = 259,457.43 : x
  2. Step 2: Convert to fraction form
    463,434.87/639,487.26 = 259,457.43/x
  3. Step 3: Cross multiply
    463,434.87x = 639,487.26 × 259,457.43
  4. Step 4: Simplify right side
    463,434.87x = 165,919,720,997.34
  5. Step 5: Solve for x
    x = 165,919,720,997.34/463,434.87
  6. Step 6: Final answer
    x = 358,021.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.