Home / 808,041.60-1,115,105.99-445,478.43

Finding the Fourth Proportional to 808,041.60, 1,115,105.99 and 445,478.43

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Solution

The fourth proportional to 808,041.60, 1,115,105.99 and 445,478.43 is: 614,764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,041.60 : 1,115,105.99 = 445,478.43 : x
  2. Step 2: Convert to fraction form
    808,041.60/1,115,105.99 = 445,478.43/x
  3. Step 3: Cross multiply
    808,041.60x = 1,115,105.99 × 445,478.43
  4. Step 4: Simplify right side
    808,041.60x = 496,755,665,708.80
  5. Step 5: Solve for x
    x = 496,755,665,708.80/808,041.60
  6. Step 6: Final answer
    x = 614,764.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.