Home / 419,714.24-629,386.08-120,126.56

Finding the Fourth Proportional to 419,714.24, 629,386.08 and 120,126.56

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Solution

The fourth proportional to 419,714.24, 629,386.08 and 120,126.56 is: 180,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,714.24 : 629,386.08 = 120,126.56 : x
  2. Step 2: Convert to fraction form
    419,714.24/629,386.08 = 120,126.56/x
  3. Step 3: Cross multiply
    419,714.24x = 629,386.08 × 120,126.56
  4. Step 4: Simplify right side
    419,714.24x = 75,605,984,702.28
  5. Step 5: Solve for x
    x = 75,605,984,702.28/419,714.24
  6. Step 6: Final answer
    x = 180,136.81

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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.