Home / 1,230,997.20-1,846,495.80-389,614.80

Finding the Fourth Proportional to 1,230,997.20, 1,846,495.80 and 389,614.80

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Solution

The fourth proportional to 1,230,997.20, 1,846,495.80 and 389,614.80 is: 584,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,997.20 : 1,846,495.80 = 389,614.80 : x
  2. Step 2: Convert to fraction form
    1,230,997.20/1,846,495.80 = 389,614.80/x
  3. Step 3: Cross multiply
    1,230,997.20x = 1,846,495.80 × 389,614.80
  4. Step 4: Simplify right side
    1,230,997.20x = 719,422,091,817.84
  5. Step 5: Solve for x
    x = 719,422,091,817.84/1,230,997.20
  6. Step 6: Final answer
    x = 584,422.20

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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.