Finding the Fourth Proportional to 1,569,153.09, 2,158,636.01 and 1,374,685.05
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Solution
The fourth proportional to 1,569,153.09, 2,158,636.01 and 1,374,685.05 is: 1,891,112.26
Step by Step Solution
- Step 1: Write the proportion equation
1,569,153.09 : 2,158,636.01 = 1,374,685.05 : x - Step 2: Convert to fraction form
1,569,153.09/2,158,636.01 = 1,374,685.05/x - Step 3: Cross multiply
1,569,153.09x = 2,158,636.01 × 1,374,685.05 - Step 4: Simplify right side
1,569,153.09x = 2,967,444,643,982.18 - Step 5: Solve for x
x = 2,967,444,643,982.18/1,569,153.09 - Step 6: Final answer
x = 1,891,112.26
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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.