Finding the Fourth Proportional to 1,279,027.66, 1,918,091.12 and 425,867.62
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Solution
The fourth proportional to 1,279,027.66, 1,918,091.12 and 425,867.62 is: 638,651.47
Step by Step Solution
- Step 1: Write the proportion equation
1,279,027.66 : 1,918,091.12 = 425,867.62 : x - Step 2: Convert to fraction form
1,279,027.66/1,918,091.12 = 425,867.62/x - Step 3: Cross multiply
1,279,027.66x = 1,918,091.12 × 425,867.62 - Step 4: Simplify right side
1,279,027.66x = 816,852,900,217.53 - Step 5: Solve for x
x = 816,852,900,217.53/1,279,027.66 - Step 6: Final answer
x = 638,651.47
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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.