Finding the Fourth Proportional to 1,704,128.09, 2,351,904.86 and 978,974.24
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Solution
The fourth proportional to 1,704,128.09, 2,351,904.86 and 978,974.24 is: 1,351,103.99
Step by Step Solution
- Step 1: Write the proportion equation
1,704,128.09 : 2,351,904.86 = 978,974.24 : x - Step 2: Convert to fraction form
1,704,128.09/2,351,904.86 = 978,974.24/x - Step 3: Cross multiply
1,704,128.09x = 2,351,904.86 × 978,974.24 - Step 4: Simplify right side
1,704,128.09x = 2,302,454,263,558.72 - Step 5: Solve for x
x = 2,302,454,263,558.72/1,704,128.09 - Step 6: Final answer
x = 1,351,103.99
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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.