Finding the Fourth Proportional to 1,424,190.09, 1,965,387.62 and 779,670.25
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Solution
The fourth proportional to 1,424,190.09, 1,965,387.62 and 779,670.25 is: 1,075,947.84
Step by Step Solution
- Step 1: Write the proportion equation
1,424,190.09 : 1,965,387.62 = 779,670.25 : x - Step 2: Convert to fraction form
1,424,190.09/1,965,387.62 = 779,670.25/x - Step 3: Cross multiply
1,424,190.09x = 1,965,387.62 × 779,670.25 - Step 4: Simplify right side
1,424,190.09x = 1,532,354,257,032.31 - Step 5: Solve for x
x = 1,532,354,257,032.31/1,424,190.09 - Step 6: Final answer
x = 1,075,947.84
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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.