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Finding the Fourth Proportional to 453,744.40, 680,616.60 and 445,871.20

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Solution

The fourth proportional to 453,744.40, 680,616.60 and 445,871.20 is: 668,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,744.40 : 680,616.60 = 445,871.20 : x
  2. Step 2: Convert to fraction form
    453,744.40/680,616.60 = 445,871.20/x
  3. Step 3: Cross multiply
    453,744.40x = 680,616.60 × 445,871.20
  4. Step 4: Simplify right side
    453,744.40x = 303,467,340,181.92
  5. Step 5: Solve for x
    x = 303,467,340,181.92/453,744.40
  6. Step 6: Final answer
    x = 668,806.80

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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.