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Finding the Fourth Proportional to 451,767.78, 677,435.40 and 262,280.50

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Solution

The fourth proportional to 451,767.78, 677,435.40 and 262,280.50 is: 393,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,767.78 : 677,435.40 = 262,280.50 : x
  2. Step 2: Convert to fraction form
    451,767.78/677,435.40 = 262,280.50/x
  3. Step 3: Cross multiply
    451,767.78x = 677,435.40 × 262,280.50
  4. Step 4: Simplify right side
    451,767.78x = 177,678,093,736.11
  5. Step 5: Solve for x
    x = 177,678,093,736.11/451,767.78
  6. Step 6: Final answer
    x = 393,295.19

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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.