Home / 1,205,837.87-1,807,380.83-485,718.41

Finding the Fourth Proportional to 1,205,837.87, 1,807,380.83 and 485,718.41

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Solution

The fourth proportional to 1,205,837.87, 1,807,380.83 and 485,718.41 is: 728,023.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,837.87 : 1,807,380.83 = 485,718.41 : x
  2. Step 2: Convert to fraction form
    1,205,837.87/1,807,380.83 = 485,718.41/x
  3. Step 3: Cross multiply
    1,205,837.87x = 1,807,380.83 × 485,718.41
  4. Step 4: Simplify right side
    1,205,837.87x = 877,878,131,546.58
  5. Step 5: Solve for x
    x = 877,878,131,546.58/1,205,837.87
  6. Step 6: Final answer
    x = 728,023.36

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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.