Finding the Fourth Proportional to 1,543,659.12, 2,315,278.49 and 406,326.07
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Solution
The fourth proportional to 1,543,659.12, 2,315,278.49 and 406,326.07 is: 609,433.78
Step by Step Solution
- Step 1: Write the proportion equation
1,543,659.12 : 2,315,278.49 = 406,326.07 : x - Step 2: Convert to fraction form
1,543,659.12/2,315,278.49 = 406,326.07/x - Step 3: Cross multiply
1,543,659.12x = 2,315,278.49 × 406,326.07 - Step 4: Simplify right side
1,543,659.12x = 940,758,010,659.70 - Step 5: Solve for x
x = 940,758,010,659.70/1,543,659.12 - Step 6: Final answer
x = 609,433.78
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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.