Finding the Fourth Proportional to 813,239.16, 1,122,294.66 and 450,629.09
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Solution
The fourth proportional to 813,239.16, 1,122,294.66 and 450,629.09 is: 621,881.79
Step by Step Solution
- Step 1: Write the proportion equation
813,239.16 : 1,122,294.66 = 450,629.09 : x - Step 2: Convert to fraction form
813,239.16/1,122,294.66 = 450,629.09/x - Step 3: Cross multiply
813,239.16x = 1,122,294.66 × 450,629.09 - Step 4: Simplify right side
813,239.16x = 505,738,618,254.93 - Step 5: Solve for x
x = 505,738,618,254.93/813,239.16 - Step 6: Final answer
x = 621,881.79
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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.