Finding the Fourth Proportional to 1,190,420.14, 1,783,763.97 and 1,012,194.22
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Solution
The fourth proportional to 1,190,420.14, 1,783,763.97 and 1,012,194.22 is: 1,516,704.50
Step by Step Solution
- Step 1: Write the proportion equation
1,190,420.14 : 1,783,763.97 = 1,012,194.22 : x - Step 2: Convert to fraction form
1,190,420.14/1,783,763.97 = 1,012,194.22/x - Step 3: Cross multiply
1,190,420.14x = 1,783,763.97 × 1,012,194.22 - Step 4: Simplify right side
1,190,420.14x = 1,805,515,580,278.25 - Step 5: Solve for x
x = 1,805,515,580,278.25/1,190,420.14 - Step 6: Final answer
x = 1,516,704.50
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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.