Finding the Fourth Proportional to 1,297,678.96, 1,777,790.36 and 1,249,161.58
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Solution
The fourth proportional to 1,297,678.96, 1,777,790.36 and 1,249,161.58 is: 1,711,322.66
Step by Step Solution
- Step 1: Write the proportion equation
1,297,678.96 : 1,777,790.36 = 1,249,161.58 : x - Step 2: Convert to fraction form
1,297,678.96/1,777,790.36 = 1,249,161.58/x - Step 3: Cross multiply
1,297,678.96x = 1,777,790.36 × 1,249,161.58 - Step 4: Simplify right side
1,297,678.96x = 2,220,747,415,006.37 - Step 5: Solve for x
x = 2,220,747,415,006.37/1,297,678.96 - Step 6: Final answer
x = 1,711,322.66
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.