Finding the Fourth Proportional to 1,491,490.05, 2,058,198.21 and 911,683.96
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Solution
The fourth proportional to 1,491,490.05, 2,058,198.21 and 911,683.96 is: 1,258,088.38
Step by Step Solution
- Step 1: Write the proportion equation
1,491,490.05 : 2,058,198.21 = 911,683.96 : x - Step 2: Convert to fraction form
1,491,490.05/2,058,198.21 = 911,683.96/x - Step 3: Cross multiply
1,491,490.05x = 2,058,198.21 × 911,683.96 - Step 4: Simplify right side
1,491,490.05x = 1,876,426,294,557.71 - Step 5: Solve for x
x = 1,876,426,294,557.71/1,491,490.05 - Step 6: Final answer
x = 1,258,088.38
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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.