Finding the Fourth Proportional to 1,277,088.93, 1,769,990.13 and 1,253,174.09
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Solution
The fourth proportional to 1,277,088.93, 1,769,990.13 and 1,253,174.09 is: 1,736,845.19
Step by Step Solution
- Step 1: Write the proportion equation
1,277,088.93 : 1,769,990.13 = 1,253,174.09 : x - Step 2: Convert to fraction form
1,277,088.93/1,769,990.13 = 1,253,174.09/x - Step 3: Cross multiply
1,277,088.93x = 1,769,990.13 × 1,253,174.09 - Step 4: Simplify right side
1,277,088.93x = 2,218,105,761,621.78 - Step 5: Solve for x
x = 2,218,105,761,621.78/1,277,088.93 - Step 6: Final answer
x = 1,736,845.19
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.