Home / 812,362.59-1,121,095.41-449,786.44

Finding the Fourth Proportional to 812,362.59, 1,121,095.41 and 449,786.44

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Solution

The fourth proportional to 812,362.59, 1,121,095.41 and 449,786.44 is: 620,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,362.59 : 1,121,095.41 = 449,786.44 : x
  2. Step 2: Convert to fraction form
    812,362.59/1,121,095.41 = 449,786.44/x
  3. Step 3: Cross multiply
    812,362.59x = 1,121,095.41 × 449,786.44
  4. Step 4: Simplify right side
    812,362.59x = 504,253,513,364.24
  5. Step 5: Solve for x
    x = 504,253,513,364.24/812,362.59
  6. Step 6: Final answer
    x = 620,724.69

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Double scale
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1.5x scale

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.