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Finding the Fourth Proportional to 678,300.74, 1,017,472.83 and 341,157.38

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Solution

The fourth proportional to 678,300.74, 1,017,472.83 and 341,157.38 is: 511,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,300.74 : 1,017,472.83 = 341,157.38 : x
  2. Step 2: Convert to fraction form
    678,300.74/1,017,472.83 = 341,157.38/x
  3. Step 3: Cross multiply
    678,300.74x = 1,017,472.83 × 341,157.38
  4. Step 4: Simplify right side
    678,300.74x = 347,118,364,903.99
  5. Step 5: Solve for x
    x = 347,118,364,903.99/678,300.74
  6. Step 6: Final answer
    x = 511,746.99

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