Finding the Fourth Proportional to 818,559.02, 1,129,645.49 and 455,982.79
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Solution
The fourth proportional to 818,559.02, 1,129,645.49 and 455,982.79 is: 629,275.21
Step by Step Solution
- Step 1: Write the proportion equation
818,559.02 : 1,129,645.49 = 455,982.79 : x - Step 2: Convert to fraction form
818,559.02/1,129,645.49 = 455,982.79/x - Step 3: Cross multiply
818,559.02x = 1,129,645.49 × 455,982.79 - Step 4: Simplify right side
818,559.02x = 515,098,897,137.09 - Step 5: Solve for x
x = 515,098,897,137.09/818,559.02 - Step 6: Final answer
x = 629,275.21
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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.