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Finding the Fourth Proportional to 640,735.92, 962,679.60 and 482,484.24

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Solution

The fourth proportional to 640,735.92, 962,679.60 and 482,484.24 is: 724,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,735.92 : 962,679.60 = 482,484.24 : x
  2. Step 2: Convert to fraction form
    640,735.92/962,679.60 = 482,484.24/x
  3. Step 3: Cross multiply
    640,735.92x = 962,679.60 × 482,484.24
  4. Step 4: Simplify right side
    640,735.92x = 464,477,735,169.50
  5. Step 5: Solve for x
    x = 464,477,735,169.50/640,735.92
  6. Step 6: Final answer
    x = 724,912.90

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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.