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Finding the Fourth Proportional to 452,604.49, 678,906.63 and 115,645.77

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Solution

The fourth proportional to 452,604.49, 678,906.63 and 115,645.77 is: 173,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,604.49 : 678,906.63 = 115,645.77 : x
  2. Step 2: Convert to fraction form
    452,604.49/678,906.63 = 115,645.77/x
  3. Step 3: Cross multiply
    452,604.49x = 678,906.63 × 115,645.77
  4. Step 4: Simplify right side
    452,604.49x = 78,512,679,406.23
  5. Step 5: Solve for x
    x = 78,512,679,406.23/452,604.49
  6. Step 6: Final answer
    x = 173,468.63

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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.