Home / 351,939.40-527,909.10-331,664.20

Finding the Fourth Proportional to 351,939.40, 527,909.10 and 331,664.20

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Solution

The fourth proportional to 351,939.40, 527,909.10 and 331,664.20 is: 497,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,939.40 : 527,909.10 = 331,664.20 : x
  2. Step 2: Convert to fraction form
    351,939.40/527,909.10 = 331,664.20/x
  3. Step 3: Cross multiply
    351,939.40x = 527,909.10 × 331,664.20
  4. Step 4: Simplify right side
    351,939.40x = 175,088,549,324.22
  5. Step 5: Solve for x
    x = 175,088,549,324.22/351,939.40
  6. Step 6: Final answer
    x = 497,496.30

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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.