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Finding the Fourth Proportional to 447,978.80, 672,065.52 and 208,239.86

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Solution

The fourth proportional to 447,978.80, 672,065.52 and 208,239.86 is: 312,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,978.80 : 672,065.52 = 208,239.86 : x
  2. Step 2: Convert to fraction form
    447,978.80/672,065.52 = 208,239.86/x
  3. Step 3: Cross multiply
    447,978.80x = 672,065.52 × 208,239.86
  4. Step 4: Simplify right side
    447,978.80x = 139,950,829,795.63
  5. Step 5: Solve for x
    x = 139,950,829,795.63/447,978.80
  6. Step 6: Final answer
    x = 312,405.03

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Why These Related Problems?

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