Home / 808,072.32-1,115,119.30-445,487.80

Finding the Fourth Proportional to 808,072.32, 1,115,119.30 and 445,487.80

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Solution

The fourth proportional to 808,072.32, 1,115,119.30 and 445,487.80 is: 614,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,072.32 : 1,115,119.30 = 445,487.80 : x
  2. Step 2: Convert to fraction form
    808,072.32/1,115,119.30 = 445,487.80/x
  3. Step 3: Cross multiply
    808,072.32x = 1,115,119.30 × 445,487.80
  4. Step 4: Simplify right side
    808,072.32x = 496,772,043,694.54
  5. Step 5: Solve for x
    x = 496,772,043,694.54/808,072.32
  6. Step 6: Final answer
    x = 614,761.86

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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.