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Finding the Fourth Proportional to 482,806.60, 724,209.90 and 305,513.80

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Solution

The fourth proportional to 482,806.60, 724,209.90 and 305,513.80 is: 458,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,806.60 : 724,209.90 = 305,513.80 : x
  2. Step 2: Convert to fraction form
    482,806.60/724,209.90 = 305,513.80/x
  3. Step 3: Cross multiply
    482,806.60x = 724,209.90 × 305,513.80
  4. Step 4: Simplify right side
    482,806.60x = 221,256,118,546.62
  5. Step 5: Solve for x
    x = 221,256,118,546.62/482,806.60
  6. Step 6: Final answer
    x = 458,270.70

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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.