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Finding the Fourth Proportional to 482,912.80, 724,887.60 and 272,960.80

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Solution

The fourth proportional to 482,912.80, 724,887.60 and 272,960.80 is: 409,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,912.80 : 724,887.60 = 272,960.80 : x
  2. Step 2: Convert to fraction form
    482,912.80/724,887.60 = 272,960.80/x
  3. Step 3: Cross multiply
    482,912.80x = 724,887.60 × 272,960.80
  4. Step 4: Simplify right side
    482,912.80x = 197,865,899,206.08
  5. Step 5: Solve for x
    x = 197,865,899,206.08/482,912.80
  6. Step 6: Final answer
    x = 409,734.22

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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.