Finding the Fourth Proportional to 1,929,545.70, 2,662,936.61 and 1,070,382.75
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Solution
The fourth proportional to 1,929,545.70, 2,662,936.61 and 1,070,382.75 is: 1,477,218.92
Step by Step Solution
- Step 1: Write the proportion equation
1,929,545.70 : 2,662,936.61 = 1,070,382.75 : x - Step 2: Convert to fraction form
1,929,545.70/2,662,936.61 = 1,070,382.75/x - Step 3: Cross multiply
1,929,545.70x = 2,662,936.61 × 1,070,382.75 - Step 4: Simplify right side
1,929,545.70x = 2,850,361,406,335.56 - Step 5: Solve for x
x = 2,850,361,406,335.56/1,929,545.70 - Step 6: Final answer
x = 1,477,218.92
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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.