Finding the Fourth Proportional to 1,315,659.26, 1,973,559.53 and 417,171.06
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Solution
The fourth proportional to 1,315,659.26, 1,973,559.53 and 417,171.06 is: 625,778.99
Step by Step Solution
- Step 1: Write the proportion equation
1,315,659.26 : 1,973,559.53 = 417,171.06 : x - Step 2: Convert to fraction form
1,315,659.26/1,973,559.53 = 417,171.06/x - Step 3: Cross multiply
1,315,659.26x = 1,973,559.53 × 417,171.06 - Step 4: Simplify right side
1,315,659.26x = 823,311,922,146.13 - Step 5: Solve for x
x = 823,311,922,146.13/1,315,659.26 - Step 6: Final answer
x = 625,778.99
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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.