Home / 764,660.82-1,055,025.09-492,505.68

Finding the Fourth Proportional to 764,660.82, 1,055,025.09 and 492,505.68

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Solution

The fourth proportional to 764,660.82, 1,055,025.09 and 492,505.68 is: 679,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,660.82 : 1,055,025.09 = 492,505.68 : x
  2. Step 2: Convert to fraction form
    764,660.82/1,055,025.09 = 492,505.68/x
  3. Step 3: Cross multiply
    764,660.82x = 1,055,025.09 × 492,505.68
  4. Step 4: Simplify right side
    764,660.82x = 519,605,849,367.51
  5. Step 5: Solve for x
    x = 519,605,849,367.51/764,660.82
  6. Step 6: Final answer
    x = 679,524.62

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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.