Finding the Fourth Proportional to 1,351,283.90, 1,864,771.70 and 739,436.74
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Solution
The fourth proportional to 1,351,283.90, 1,864,771.70 and 739,436.74 is: 1,020,422.66
Step by Step Solution
- Step 1: Write the proportion equation
1,351,283.90 : 1,864,771.70 = 739,436.74 : x - Step 2: Convert to fraction form
1,351,283.90/1,864,771.70 = 739,436.74/x - Step 3: Cross multiply
1,351,283.90x = 1,864,771.70 × 739,436.74 - Step 4: Simplify right side
1,351,283.90x = 1,378,880,706,692.26 - Step 5: Solve for x
x = 1,378,880,706,692.26/1,351,283.90 - Step 6: Final answer
x = 1,020,422.66
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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.