Home / 911,896.23-1,368,080.69-485,080.56

Finding the Fourth Proportional to 911,896.23, 1,368,080.69 and 485,080.56

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Solution

The fourth proportional to 911,896.23, 1,368,080.69 and 485,080.56 is: 727,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,896.23 : 1,368,080.69 = 485,080.56 : x
  2. Step 2: Convert to fraction form
    911,896.23/1,368,080.69 = 485,080.56/x
  3. Step 3: Cross multiply
    911,896.23x = 1,368,080.69 × 485,080.56
  4. Step 4: Simplify right side
    911,896.23x = 663,629,344,804.98
  5. Step 5: Solve for x
    x = 663,629,344,804.98/911,896.23
  6. Step 6: Final answer
    x = 727,746.56

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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.