Home / 331,086.20-497,666.10-324,865.40

Finding the Fourth Proportional to 331,086.20, 497,666.10 and 324,865.40

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Solution

The fourth proportional to 331,086.20, 497,666.10 and 324,865.40 is: 488,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,086.20 : 497,666.10 = 324,865.40 : x
  2. Step 2: Convert to fraction form
    331,086.20/497,666.10 = 324,865.40/x
  3. Step 3: Cross multiply
    331,086.20x = 497,666.10 × 324,865.40
  4. Step 4: Simplify right side
    331,086.20x = 161,674,496,642.94
  5. Step 5: Solve for x
    x = 161,674,496,642.94/331,086.20
  6. Step 6: Final answer
    x = 488,315.42

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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.