Home / 813,359.56-1,122,405.63-450,789.61

Finding the Fourth Proportional to 813,359.56, 1,122,405.63 and 450,789.61

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Solution

The fourth proportional to 813,359.56, 1,122,405.63 and 450,789.61 is: 622,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,359.56 : 1,122,405.63 = 450,789.61 : x
  2. Step 2: Convert to fraction form
    813,359.56/1,122,405.63 = 450,789.61/x
  3. Step 3: Cross multiply
    813,359.56x = 1,122,405.63 × 450,789.61
  4. Step 4: Simplify right side
    813,359.56x = 505,968,796,209.50
  5. Step 5: Solve for x
    x = 505,968,796,209.50/813,359.56
  6. Step 6: Final answer
    x = 622,072.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.