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Finding the Fourth Proportional to 482,899.20, 724,809.60 and 412,857.60

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Solution

The fourth proportional to 482,899.20, 724,809.60 and 412,857.60 is: 619,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,899.20 : 724,809.60 = 412,857.60 : x
  2. Step 2: Convert to fraction form
    482,899.20/724,809.60 = 412,857.60/x
  3. Step 3: Cross multiply
    482,899.20x = 724,809.60 × 412,857.60
  4. Step 4: Simplify right side
    482,899.20x = 299,243,151,912.96
  5. Step 5: Solve for x
    x = 299,243,151,912.96/482,899.20
  6. Step 6: Final answer
    x = 619,680.36

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1.5x scale

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.