Home / 764,876.70-1,147,643.10-390,899.70

Finding the Fourth Proportional to 764,876.70, 1,147,643.10 and 390,899.70

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Solution

The fourth proportional to 764,876.70, 1,147,643.10 and 390,899.70 is: 586,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,876.70 : 1,147,643.10 = 390,899.70 : x
  2. Step 2: Convert to fraction form
    764,876.70/1,147,643.10 = 390,899.70/x
  3. Step 3: Cross multiply
    764,876.70x = 1,147,643.10 × 390,899.70
  4. Step 4: Simplify right side
    764,876.70x = 448,613,343,497.07
  5. Step 5: Solve for x
    x = 448,613,343,497.07/764,876.70
  6. Step 6: Final answer
    x = 586,517.20

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