Finding the Fourth Proportional to 854,451.55, 1,178,741.67 and 609,490.45
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Solution
The fourth proportional to 854,451.55, 1,178,741.67 and 609,490.45 is: 840,810.45
Step by Step Solution
- Step 1: Write the proportion equation
854,451.55 : 1,178,741.67 = 609,490.45 : x - Step 2: Convert to fraction form
854,451.55/1,178,741.67 = 609,490.45/x - Step 3: Cross multiply
854,451.55x = 1,178,741.67 × 609,490.45 - Step 4: Simplify right side
854,451.55x = 718,431,790,882.05 - Step 5: Solve for x
x = 718,431,790,882.05/854,451.55 - Step 6: Final answer
x = 840,810.45
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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.