Home / 2,198,639.80-3,296,039.70-851,721.40

Finding the Fourth Proportional to 2,198,639.80, 3,296,039.70 and 851,721.40

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Solution

The fourth proportional to 2,198,639.80, 3,296,039.70 and 851,721.40 is: 1,276,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,639.80 : 3,296,039.70 = 851,721.40 : x
  2. Step 2: Convert to fraction form
    2,198,639.80/3,296,039.70 = 851,721.40/x
  3. Step 3: Cross multiply
    2,198,639.80x = 3,296,039.70 × 851,721.40
  4. Step 4: Simplify right side
    2,198,639.80x = 2,807,307,547,739.58
  5. Step 5: Solve for x
    x = 2,807,307,547,739.58/2,198,639.80
  6. Step 6: Final answer
    x = 1,276,838.32

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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.