Home / 1,405,382.90-1,942,696.85-1,253,922.21

Finding the Fourth Proportional to 1,405,382.90, 1,942,696.85 and 1,253,922.21

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Solution

The fourth proportional to 1,405,382.90, 1,942,696.85 and 1,253,922.21 is: 1,733,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,382.90 : 1,942,696.85 = 1,253,922.21 : x
  2. Step 2: Convert to fraction form
    1,405,382.90/1,942,696.85 = 1,253,922.21/x
  3. Step 3: Cross multiply
    1,405,382.90x = 1,942,696.85 × 1,253,922.21
  4. Step 4: Simplify right side
    1,405,382.90x = 2,435,990,721,242.43
  5. Step 5: Solve for x
    x = 2,435,990,721,242.43/1,405,382.90
  6. Step 6: Final answer
    x = 1,733,328.85

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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.