Finding the Fourth Proportional to 1,278,496.62, 1,918,057.05 and 425,566.62
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Solution
The fourth proportional to 1,278,496.62, 1,918,057.05 and 425,566.62 is: 638,453.82
Step by Step Solution
- Step 1: Write the proportion equation
1,278,496.62 : 1,918,057.05 = 425,566.62 : x - Step 2: Convert to fraction form
1,278,496.62/1,918,057.05 = 425,566.62/x - Step 3: Cross multiply
1,278,496.62x = 1,918,057.05 × 425,566.62 - Step 4: Simplify right side
1,278,496.62x = 816,261,055,735.67 - Step 5: Solve for x
x = 816,261,055,735.67/1,278,496.62 - Step 6: Final answer
x = 638,453.82
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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.