Home / 439,822.40-659,215.20-328,884.80

Finding the Fourth Proportional to 439,822.40, 659,215.20 and 328,884.80

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Solution

The fourth proportional to 439,822.40, 659,215.20 and 328,884.80 is: 492,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,822.40 : 659,215.20 = 328,884.80 : x
  2. Step 2: Convert to fraction form
    439,822.40/659,215.20 = 328,884.80/x
  3. Step 3: Cross multiply
    439,822.40x = 659,215.20 × 328,884.80
  4. Step 4: Simplify right side
    439,822.40x = 216,805,859,208.96
  5. Step 5: Solve for x
    x = 216,805,859,208.96/439,822.40
  6. Step 6: Final answer
    x = 492,939.56

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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.