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Finding the Fourth Proportional to 708,967.56, 978,469.26 and 450,868.88

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Solution

The fourth proportional to 708,967.56, 978,469.26 and 450,868.88 is: 622,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,967.56 : 978,469.26 = 450,868.88 : x
  2. Step 2: Convert to fraction form
    708,967.56/978,469.26 = 450,868.88/x
  3. Step 3: Cross multiply
    708,967.56x = 978,469.26 × 450,868.88
  4. Step 4: Simplify right side
    708,967.56x = 441,161,339,370.63
  5. Step 5: Solve for x
    x = 441,161,339,370.63/708,967.56
  6. Step 6: Final answer
    x = 622,258.85

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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.