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Finding the Fourth Proportional to 483,212.20, 724,818.30 and 448,220.20

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Solution

The fourth proportional to 483,212.20, 724,818.30 and 448,220.20 is: 672,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,212.20 : 724,818.30 = 448,220.20 : x
  2. Step 2: Convert to fraction form
    483,212.20/724,818.30 = 448,220.20/x
  3. Step 3: Cross multiply
    483,212.20x = 724,818.30 × 448,220.20
  4. Step 4: Simplify right side
    483,212.20x = 324,878,203,389.66
  5. Step 5: Solve for x
    x = 324,878,203,389.66/483,212.20
  6. Step 6: Final answer
    x = 672,330.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.