Finding the Fourth Proportional to 1,510,639.41, 2,085,122.62 and 987,426.03
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Solution
The fourth proportional to 1,510,639.41, 2,085,122.62 and 987,426.03 is: 1,362,935.68
Step by Step Solution
- Step 1: Write the proportion equation
1,510,639.41 : 2,085,122.62 = 987,426.03 : x - Step 2: Convert to fraction form
1,510,639.41/2,085,122.62 = 987,426.03/x - Step 3: Cross multiply
1,510,639.41x = 2,085,122.62 × 987,426.03 - Step 4: Simplify right side
1,510,639.41x = 2,058,904,350,729.80 - Step 5: Solve for x
x = 2,058,904,350,729.80/1,510,639.41 - Step 6: Final answer
x = 1,362,935.68
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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.