Home / 456,195.20-684,292.80-123,771.20

Finding the Fourth Proportional to 456,195.20, 684,292.80 and 123,771.20

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Solution

The fourth proportional to 456,195.20, 684,292.80 and 123,771.20 is: 185,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,195.20 : 684,292.80 = 123,771.20 : x
  2. Step 2: Convert to fraction form
    456,195.20/684,292.80 = 123,771.20/x
  3. Step 3: Cross multiply
    456,195.20x = 684,292.80 × 123,771.20
  4. Step 4: Simplify right side
    456,195.20x = 84,695,741,007.36
  5. Step 5: Solve for x
    x = 84,695,741,007.36/456,195.20
  6. Step 6: Final answer
    x = 185,656.80

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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.