Finding the Fourth Proportional to 1,413,696.15, 1,950,909.28 and 769,120.97
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Solution
The fourth proportional to 1,413,696.15, 1,950,909.28 and 769,120.97 is: 1,061,391.61
Step by Step Solution
- Step 1: Write the proportion equation
1,413,696.15 : 1,950,909.28 = 769,120.97 : x - Step 2: Convert to fraction form
1,413,696.15/1,950,909.28 = 769,120.97/x - Step 3: Cross multiply
1,413,696.15x = 1,950,909.28 × 769,120.97 - Step 4: Simplify right side
1,413,696.15x = 1,500,485,226,138.25 - Step 5: Solve for x
x = 1,500,485,226,138.25/1,413,696.15 - Step 6: Final answer
x = 1,061,391.61
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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.