Finding the Fourth Proportional to 814,455.18, 1,215,069.51 and 770,365.26
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Solution
The fourth proportional to 814,455.18, 1,215,069.51 and 770,365.26 is: 1,149,292.63
Step by Step Solution
- Step 1: Write the proportion equation
814,455.18 : 1,215,069.51 = 770,365.26 : x - Step 2: Convert to fraction form
814,455.18/1,215,069.51 = 770,365.26/x - Step 3: Cross multiply
814,455.18x = 1,215,069.51 × 770,365.26 - Step 4: Simplify right side
814,455.18x = 936,047,338,989.22 - Step 5: Solve for x
x = 936,047,338,989.22/814,455.18 - Step 6: Final answer
x = 1,149,292.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.