Finding the Fourth Proportional to 1,071,136.68, 1,478,168.49 and 612,261.06
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Solution
The fourth proportional to 1,071,136.68, 1,478,168.49 and 612,261.06 is: 844,920.19
Step by Step Solution
- Step 1: Write the proportion equation
1,071,136.68 : 1,478,168.49 = 612,261.06 : x - Step 2: Convert to fraction form
1,071,136.68/1,478,168.49 = 612,261.06/x - Step 3: Cross multiply
1,071,136.68x = 1,478,168.49 × 612,261.06 - Step 4: Simplify right side
1,071,136.68x = 905,025,006,546.00 - Step 5: Solve for x
x = 905,025,006,546.00/1,071,136.68 - Step 6: Final answer
x = 844,920.19
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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.