Finding the Fourth Proportional to 1,273,605.18, 1,757,589.66 and 729,730.05
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Solution
The fourth proportional to 1,273,605.18, 1,757,589.66 and 729,730.05 is: 1,007,035.78
Step by Step Solution
- Step 1: Write the proportion equation
1,273,605.18 : 1,757,589.66 = 729,730.05 : x - Step 2: Convert to fraction form
1,273,605.18/1,757,589.66 = 729,730.05/x - Step 3: Cross multiply
1,273,605.18x = 1,757,589.66 × 729,730.05 - Step 4: Simplify right side
1,273,605.18x = 1,282,565,990,471.28 - Step 5: Solve for x
x = 1,282,565,990,471.28/1,273,605.18 - Step 6: Final answer
x = 1,007,035.78
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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.