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Finding the Fourth Proportional to 482,960.40, 724,440.60 and 437,859.60

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Solution

The fourth proportional to 482,960.40, 724,440.60 and 437,859.60 is: 656,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,960.40 : 724,440.60 = 437,859.60 : x
  2. Step 2: Convert to fraction form
    482,960.40/724,440.60 = 437,859.60/x
  3. Step 3: Cross multiply
    482,960.40x = 724,440.60 × 437,859.60
  4. Step 4: Simplify right side
    482,960.40x = 317,203,271,339.76
  5. Step 5: Solve for x
    x = 317,203,271,339.76/482,960.40
  6. Step 6: Final answer
    x = 656,789.40

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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.