Home / 436,215.20-654,322.80-331,239.20

Finding the Fourth Proportional to 436,215.20, 654,322.80 and 331,239.20

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Solution

The fourth proportional to 436,215.20, 654,322.80 and 331,239.20 is: 496,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,215.20 : 654,322.80 = 331,239.20 : x
  2. Step 2: Convert to fraction form
    436,215.20/654,322.80 = 331,239.20/x
  3. Step 3: Cross multiply
    436,215.20x = 654,322.80 × 331,239.20
  4. Step 4: Simplify right side
    436,215.20x = 216,737,360,813.76
  5. Step 5: Solve for x
    x = 216,737,360,813.76/436,215.20
  6. Step 6: Final answer
    x = 496,858.80

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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.