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Finding the Fourth Proportional to 472,506.80, 707,593.80 and 313,876.40

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Solution

The fourth proportional to 472,506.80, 707,593.80 and 313,876.40 is: 470,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,506.80 : 707,593.80 = 313,876.40 : x
  2. Step 2: Convert to fraction form
    472,506.80/707,593.80 = 313,876.40/x
  3. Step 3: Cross multiply
    472,506.80x = 707,593.80 × 313,876.40
  4. Step 4: Simplify right side
    472,506.80x = 222,096,994,606.32
  5. Step 5: Solve for x
    x = 222,096,994,606.32/472,506.80
  6. Step 6: Final answer
    x = 470,039.78

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