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Finding the Fourth Proportional to 1,124,212, 1,686,339.92 and 413,874.40

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Solution

The fourth proportional to 1,124,212, 1,686,339.92 and 413,874.40 is: 620,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,212 : 1,686,339.92 = 413,874.40 : x
  2. Step 2: Convert to fraction form
    1,124,212/1,686,339.92 = 413,874.40/x
  3. Step 3: Cross multiply
    1,124,212x = 1,686,339.92 × 413,874.40
  4. Step 4: Simplify right side
    1,124,212x = 697,932,922,586.05
  5. Step 5: Solve for x
    x = 697,932,922,586.05/1,124,212
  6. Step 6: Final answer
    x = 620,819.67

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