Finding the Fourth Proportional to 818,561.25, 1,129,570.65 and 451,026.99
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Solution
The fourth proportional to 818,561.25, 1,129,570.65 and 451,026.99 is: 622,393.07
Step by Step Solution
- Step 1: Write the proportion equation
818,561.25 : 1,129,570.65 = 451,026.99 : x - Step 2: Convert to fraction form
818,561.25/1,129,570.65 = 451,026.99/x - Step 3: Cross multiply
818,561.25x = 1,129,570.65 × 451,026.99 - Step 4: Simplify right side
818,561.25x = 509,466,850,261.84 - Step 5: Solve for x
x = 509,466,850,261.84/818,561.25 - Step 6: Final answer
x = 622,393.07
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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.