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Finding the Fourth Proportional to 586,190.88, 808,944.84 and 317,918.88

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Solution

The fourth proportional to 586,190.88, 808,944.84 and 317,918.88 is: 438,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,190.88 : 808,944.84 = 317,918.88 : x
  2. Step 2: Convert to fraction form
    586,190.88/808,944.84 = 317,918.88/x
  3. Step 3: Cross multiply
    586,190.88x = 808,944.84 × 317,918.88
  4. Step 4: Simplify right side
    586,190.88x = 257,178,837,514.58
  5. Step 5: Solve for x
    x = 257,178,837,514.58/586,190.88
  6. Step 6: Final answer
    x = 438,728.83

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