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Finding the Fourth Proportional to 709,245.52, 978,615.44 and 451,224.88

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Solution

The fourth proportional to 709,245.52, 978,615.44 and 451,224.88 is: 622,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,245.52 : 978,615.44 = 451,224.88 : x
  2. Step 2: Convert to fraction form
    709,245.52/978,615.44 = 451,224.88/x
  3. Step 3: Cross multiply
    709,245.52x = 978,615.44 × 451,224.88
  4. Step 4: Simplify right side
    709,245.52x = 441,575,634,480.15
  5. Step 5: Solve for x
    x = 441,575,634,480.15/709,245.52
  6. Step 6: Final answer
    x = 622,599.12

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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.