Finding the Fourth Proportional to 1,190,378.72, 1,642,734.50 and 646,525.13
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Solution
The fourth proportional to 1,190,378.72, 1,642,734.50 and 646,525.13 is: 892,211.12
Step by Step Solution
- Step 1: Write the proportion equation
1,190,378.72 : 1,642,734.50 = 646,525.13 : x - Step 2: Convert to fraction form
1,190,378.72/1,642,734.50 = 646,525.13/x - Step 3: Cross multiply
1,190,378.72x = 1,642,734.50 × 646,525.13 - Step 4: Simplify right side
1,190,378.72x = 1,062,069,137,042.20 - Step 5: Solve for x
x = 1,062,069,137,042.20/1,190,378.72 - Step 6: Final answer
x = 892,211.12
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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.