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Finding the Fourth Proportional to 978,860, 1,468,114.40 and 259,206.24

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Solution

The fourth proportional to 978,860, 1,468,114.40 and 259,206.24 is: 388,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,860 : 1,468,114.40 = 259,206.24 : x
  2. Step 2: Convert to fraction form
    978,860/1,468,114.40 = 259,206.24/x
  3. Step 3: Cross multiply
    978,860x = 1,468,114.40 × 259,206.24
  4. Step 4: Simplify right side
    978,860x = 380,544,413,513.86
  5. Step 5: Solve for x
    x = 380,544,413,513.86/978,860
  6. Step 6: Final answer
    x = 388,762.86

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Why These Related Problems?

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