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Finding the Fourth Proportional to 613,960.12, 847,252.20 and 342,027.64

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Solution

The fourth proportional to 613,960.12, 847,252.20 and 342,027.64 is: 471,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,960.12 : 847,252.20 = 342,027.64 : x
  2. Step 2: Convert to fraction form
    613,960.12/847,252.20 = 342,027.64/x
  3. Step 3: Cross multiply
    613,960.12x = 847,252.20 × 342,027.64
  4. Step 4: Simplify right side
    613,960.12x = 289,783,670,450.81
  5. Step 5: Solve for x
    x = 289,783,670,450.81/613,960.12
  6. Step 6: Final answer
    x = 471,991.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.