Finding the Fourth Proportional to 2,379,110.74, 3,283,231.12 and 1,291,379.56
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Solution
The fourth proportional to 2,379,110.74, 3,283,231.12 and 1,291,379.56 is: 1,782,135.43
Step by Step Solution
- Step 1: Write the proportion equation
2,379,110.74 : 3,283,231.12 = 1,291,379.56 : x - Step 2: Convert to fraction form
2,379,110.74/3,283,231.12 = 1,291,379.56/x - Step 3: Cross multiply
2,379,110.74x = 3,283,231.12 × 1,291,379.56 - Step 4: Simplify right side
2,379,110.74x = 4,239,897,547,687.64 - Step 5: Solve for x
x = 4,239,897,547,687.64/2,379,110.74 - Step 6: Final answer
x = 1,782,135.43
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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.