Finding the Fourth Proportional to 1,689,505.60, 2,331,517.60 and 1,010,442.08
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Solution
The fourth proportional to 1,689,505.60, 2,331,517.60 and 1,010,442.08 is: 1,394,409.99
Step by Step Solution
- Step 1: Write the proportion equation
1,689,505.60 : 2,331,517.60 = 1,010,442.08 : x - Step 2: Convert to fraction form
1,689,505.60/2,331,517.60 = 1,010,442.08/x - Step 3: Cross multiply
1,689,505.60x = 2,331,517.60 × 1,010,442.08 - Step 4: Simplify right side
1,689,505.60x = 2,355,863,493,300.61 - Step 5: Solve for x
x = 2,355,863,493,300.61/1,689,505.60 - Step 6: Final answer
x = 1,394,409.99
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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.