Home / 764,593.83-1,055,166.62-420,456.15

Finding the Fourth Proportional to 764,593.83, 1,055,166.62 and 420,456.15

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Solution

The fourth proportional to 764,593.83, 1,055,166.62 and 420,456.15 is: 580,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,593.83 : 1,055,166.62 = 420,456.15 : x
  2. Step 2: Convert to fraction form
    764,593.83/1,055,166.62 = 420,456.15/x
  3. Step 3: Cross multiply
    764,593.83x = 1,055,166.62 × 420,456.15
  4. Step 4: Simplify right side
    764,593.83x = 443,651,292,551.43
  5. Step 5: Solve for x
    x = 443,651,292,551.43/764,593.83
  6. Step 6: Final answer
    x = 580,244.41

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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.