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Finding the Fourth Proportional to 863,242.64, 1,295,662.56 and 437,078

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Solution

The fourth proportional to 863,242.64, 1,295,662.56 and 437,078 is: 656,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,242.64 : 1,295,662.56 = 437,078 : x
  2. Step 2: Convert to fraction form
    863,242.64/1,295,662.56 = 437,078/x
  3. Step 3: Cross multiply
    863,242.64x = 1,295,662.56 × 437,078
  4. Step 4: Simplify right side
    863,242.64x = 566,305,600,399.68
  5. Step 5: Solve for x
    x = 566,305,600,399.68/863,242.64
  6. Step 6: Final answer
    x = 656,021.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.