Home / 456,091.20-684,136.80-219,895.20

Finding the Fourth Proportional to 456,091.20, 684,136.80 and 219,895.20

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Solution

The fourth proportional to 456,091.20, 684,136.80 and 219,895.20 is: 329,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,091.20 : 684,136.80 = 219,895.20 : x
  2. Step 2: Convert to fraction form
    456,091.20/684,136.80 = 219,895.20/x
  3. Step 3: Cross multiply
    456,091.20x = 684,136.80 × 219,895.20
  4. Step 4: Simplify right side
    456,091.20x = 150,438,398,463.36
  5. Step 5: Solve for x
    x = 150,438,398,463.36/456,091.20
  6. Step 6: Final answer
    x = 329,842.80

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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.