Finding the Fourth Proportional to 719,716.93, 1,079,578.92 and 293,257
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Solution
The fourth proportional to 719,716.93, 1,079,578.92 and 293,257 is: 439,886.94
Step by Step Solution
- Step 1: Write the proportion equation
719,716.93 : 1,079,578.92 = 293,257 : x - Step 2: Convert to fraction form
719,716.93/1,079,578.92 = 293,257/x - Step 3: Cross multiply
719,716.93x = 1,079,578.92 × 293,257 - Step 4: Simplify right side
719,716.93x = 316,594,075,342.44 - Step 5: Solve for x
x = 316,594,075,342.44/719,716.93 - Step 6: Final answer
x = 439,886.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.