Finding the Fourth Proportional to 1,418,756.22, 1,957,888.62 and 774,190.62
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Solution
The fourth proportional to 1,418,756.22, 1,957,888.62 and 774,190.62 is: 1,068,385.80
Step by Step Solution
- Step 1: Write the proportion equation
1,418,756.22 : 1,957,888.62 = 774,190.62 : x - Step 2: Convert to fraction form
1,418,756.22/1,957,888.62 = 774,190.62/x - Step 3: Cross multiply
1,418,756.22x = 1,957,888.62 × 774,190.62 - Step 4: Simplify right side
1,418,756.22x = 1,515,779,004,608.74 - Step 5: Solve for x
x = 1,515,779,004,608.74/1,418,756.22 - Step 6: Final answer
x = 1,068,385.80
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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.