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Finding the Fourth Proportional to 456,488.20, 684,732.30 and 448,712.20

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Solution

The fourth proportional to 456,488.20, 684,732.30 and 448,712.20 is: 673,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,488.20 : 684,732.30 = 448,712.20 : x
  2. Step 2: Convert to fraction form
    456,488.20/684,732.30 = 448,712.20/x
  3. Step 3: Cross multiply
    456,488.20x = 684,732.30 × 448,712.20
  4. Step 4: Simplify right side
    456,488.20x = 307,247,736,744.06
  5. Step 5: Solve for x
    x = 307,247,736,744.06/456,488.20
  6. Step 6: Final answer
    x = 673,068.30

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