Finding the Fourth Proportional to 1,325,974.62, 1,989,551.97 and 694,740.78
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Solution
The fourth proportional to 1,325,974.62, 1,989,551.97 and 694,740.78 is: 1,042,420.32
Step by Step Solution
- Step 1: Write the proportion equation
1,325,974.62 : 1,989,551.97 = 694,740.78 : x - Step 2: Convert to fraction form
1,325,974.62/1,989,551.97 = 694,740.78/x - Step 3: Cross multiply
1,325,974.62x = 1,989,551.97 × 694,740.78 - Step 4: Simplify right side
1,325,974.62x = 1,382,222,887,488.34 - Step 5: Solve for x
x = 1,382,222,887,488.34/1,325,974.62 - Step 6: Final answer
x = 1,042,420.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.