Finding the Fourth Proportional to 853,773.88, 1,178,253.30 and 491,252.80
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Solution
The fourth proportional to 853,773.88, 1,178,253.30 and 491,252.80 is: 677,954.96
Step by Step Solution
- Step 1: Write the proportion equation
853,773.88 : 1,178,253.30 = 491,252.80 : x - Step 2: Convert to fraction form
853,773.88/1,178,253.30 = 491,252.80/x - Step 3: Cross multiply
853,773.88x = 1,178,253.30 × 491,252.80 - Step 4: Simplify right side
853,773.88x = 578,820,232,734.24 - Step 5: Solve for x
x = 578,820,232,734.24/853,773.88 - Step 6: Final answer
x = 677,954.96
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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.