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Finding the Fourth Proportional to 708,951.24, 978,680.34 and 437,067.72

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Solution

The fourth proportional to 708,951.24, 978,680.34 and 437,067.72 is: 603,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,951.24 : 978,680.34 = 437,067.72 : x
  2. Step 2: Convert to fraction form
    708,951.24/978,680.34 = 437,067.72/x
  3. Step 3: Cross multiply
    708,951.24x = 978,680.34 × 437,067.72
  4. Step 4: Simplify right side
    708,951.24x = 427,749,584,812.63
  5. Step 5: Solve for x
    x = 427,749,584,812.63/708,951.24
  6. Step 6: Final answer
    x = 603,355.44

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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.