Finding the Fourth Proportional to 1,929,072.97, 2,661,876.01 and 1,057,678.35
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Solution
The fourth proportional to 1,929,072.97, 2,661,876.01 and 1,057,678.35 is: 1,459,461.96
Step by Step Solution
- Step 1: Write the proportion equation
1,929,072.97 : 2,661,876.01 = 1,057,678.35 : x - Step 2: Convert to fraction form
1,929,072.97/2,661,876.01 = 1,057,678.35/x - Step 3: Cross multiply
1,929,072.97x = 2,661,876.01 × 1,057,678.35 - Step 4: Simplify right side
1,929,072.97x = 2,815,408,626,161.38 - Step 5: Solve for x
x = 2,815,408,626,161.38/1,929,072.97 - Step 6: Final answer
x = 1,459,461.96
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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.