Finding the Fourth Proportional to 1,279,028.66, 1,918,092.62 and 425,868.62
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Solution
The fourth proportional to 1,279,028.66, 1,918,092.62 and 425,868.62 is: 638,652.97
Step by Step Solution
- Step 1: Write the proportion equation
1,279,028.66 : 1,918,092.62 = 425,868.62 : x - Step 2: Convert to fraction form
1,279,028.66/1,918,092.62 = 425,868.62/x - Step 3: Cross multiply
1,279,028.66x = 1,918,092.62 × 425,868.62 - Step 4: Simplify right side
1,279,028.66x = 816,855,457,111.59 - Step 5: Solve for x
x = 816,855,457,111.59/1,279,028.66 - Step 6: Final answer
x = 638,652.97
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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.