Finding the Fourth Proportional to 1,687,639.12, 2,328,852.27 and 923,545.06
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Solution
The fourth proportional to 1,687,639.12, 2,328,852.27 and 923,545.06 is: 1,274,443.09
Step by Step Solution
- Step 1: Write the proportion equation
1,687,639.12 : 2,328,852.27 = 923,545.06 : x - Step 2: Convert to fraction form
1,687,639.12/2,328,852.27 = 923,545.06/x - Step 3: Cross multiply
1,687,639.12x = 2,328,852.27 × 923,545.06 - Step 4: Simplify right side
1,687,639.12x = 2,150,800,009,428.29 - Step 5: Solve for x
x = 2,150,800,009,428.29/1,687,639.12 - Step 6: Final answer
x = 1,274,443.09
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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.