Home / 764,887.88-1,055,565.19-420,732.68

Finding the Fourth Proportional to 764,887.88, 1,055,565.19 and 420,732.68

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Solution

The fourth proportional to 764,887.88, 1,055,565.19 and 420,732.68 is: 580,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,887.88 : 1,055,565.19 = 420,732.68 : x
  2. Step 2: Convert to fraction form
    764,887.88/1,055,565.19 = 420,732.68/x
  3. Step 3: Cross multiply
    764,887.88x = 1,055,565.19 × 420,732.68
  4. Step 4: Simplify right side
    764,887.88x = 444,110,771,303.41
  5. Step 5: Solve for x
    x = 444,110,771,303.41/764,887.88
  6. Step 6: Final answer
    x = 580,622.05

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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.