Finding the Fourth Proportional to 1,207,434.56, 1,666,267.68 and 754,990.40
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Solution
The fourth proportional to 1,207,434.56, 1,666,267.68 and 754,990.40 is: 1,041,891.75
Step by Step Solution
- Step 1: Write the proportion equation
1,207,434.56 : 1,666,267.68 = 754,990.40 : x - Step 2: Convert to fraction form
1,207,434.56/1,666,267.68 = 754,990.40/x - Step 3: Cross multiply
1,207,434.56x = 1,666,267.68 × 754,990.40 - Step 4: Simplify right side
1,207,434.56x = 1,258,016,102,230.27 - Step 5: Solve for x
x = 1,258,016,102,230.27/1,207,434.56 - Step 6: Final answer
x = 1,041,891.75
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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.