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Finding the Fourth Proportional to 444,880.20, 665,765.10 and 407,555.40

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Solution

The fourth proportional to 444,880.20, 665,765.10 and 407,555.40 is: 609,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,880.20 : 665,765.10 = 407,555.40 : x
  2. Step 2: Convert to fraction form
    444,880.20/665,765.10 = 407,555.40/x
  3. Step 3: Cross multiply
    444,880.20x = 665,765.10 × 407,555.40
  4. Step 4: Simplify right side
    444,880.20x = 271,336,161,636.54
  5. Step 5: Solve for x
    x = 271,336,161,636.54/444,880.20
  6. Step 6: Final answer
    x = 609,908.38

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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.