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Finding the Fourth Proportional to 978,464.80, 1,465,882.80 and 556,487.20

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Solution

The fourth proportional to 978,464.80, 1,465,882.80 and 556,487.20 is: 833,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,464.80 : 1,465,882.80 = 556,487.20 : x
  2. Step 2: Convert to fraction form
    978,464.80/1,465,882.80 = 556,487.20/x
  3. Step 3: Cross multiply
    978,464.80x = 1,465,882.80 × 556,487.20
  4. Step 4: Simplify right side
    978,464.80x = 815,745,014,900.16
  5. Step 5: Solve for x
    x = 815,745,014,900.16/978,464.80
  6. Step 6: Final answer
    x = 833,698.89

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