Finding the Fourth Proportional to 1,229,515.29, 1,696,740.08 and 685,686.15
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Solution
The fourth proportional to 1,229,515.29, 1,696,740.08 and 685,686.15 is: 946,251.89
Step by Step Solution
- Step 1: Write the proportion equation
1,229,515.29 : 1,696,740.08 = 685,686.15 : x - Step 2: Convert to fraction form
1,229,515.29/1,696,740.08 = 685,686.15/x - Step 3: Cross multiply
1,229,515.29x = 1,696,740.08 × 685,686.15 - Step 4: Simplify right side
1,229,515.29x = 1,163,431,169,577.46 - Step 5: Solve for x
x = 1,163,431,169,577.46/1,229,515.29 - Step 6: Final answer
x = 946,251.89
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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.