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Finding the Fourth Proportional to 459,285.84, 688,692.60 and 206,349.54

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Solution

The fourth proportional to 459,285.84, 688,692.60 and 206,349.54 is: 309,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,285.84 : 688,692.60 = 206,349.54 : x
  2. Step 2: Convert to fraction form
    459,285.84/688,692.60 = 206,349.54/x
  3. Step 3: Cross multiply
    459,285.84x = 688,692.60 × 206,349.54
  4. Step 4: Simplify right side
    459,285.84x = 142,111,401,211.40
  5. Step 5: Solve for x
    x = 142,111,401,211.40/459,285.84
  6. Step 6: Final answer
    x = 309,418.21

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