Home / 347,795.40-521,693.10-331,465.80

Finding the Fourth Proportional to 347,795.40, 521,693.10 and 331,465.80

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Solution

The fourth proportional to 347,795.40, 521,693.10 and 331,465.80 is: 497,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,795.40 : 521,693.10 = 331,465.80 : x
  2. Step 2: Convert to fraction form
    347,795.40/521,693.10 = 331,465.80/x
  3. Step 3: Cross multiply
    347,795.40x = 521,693.10 × 331,465.80
  4. Step 4: Simplify right side
    347,795.40x = 172,923,420,745.98
  5. Step 5: Solve for x
    x = 172,923,420,745.98/347,795.40
  6. Step 6: Final answer
    x = 497,198.70

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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.