Home / 812,552.52-1,121,308.68-449,968.56

Finding the Fourth Proportional to 812,552.52, 1,121,308.68 and 449,968.56

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Solution

The fourth proportional to 812,552.52, 1,121,308.68 and 449,968.56 is: 620,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,552.52 : 1,121,308.68 = 449,968.56 : x
  2. Step 2: Convert to fraction form
    812,552.52/1,121,308.68 = 449,968.56/x
  3. Step 3: Cross multiply
    812,552.52x = 1,121,308.68 × 449,968.56
  4. Step 4: Simplify right side
    812,552.52x = 504,553,652,055.10
  5. Step 5: Solve for x
    x = 504,553,652,055.10/812,552.52
  6. Step 6: Final answer
    x = 620,948.97

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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.