Finding the Fourth Proportional to 618,451.80, 853,451.10 and 346,516.44
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Solution
The fourth proportional to 618,451.80, 853,451.10 and 346,516.44 is: 478,185.75
Step by Step Solution
- Step 1: Write the proportion equation
618,451.80 : 853,451.10 = 346,516.44 : x - Step 2: Convert to fraction form
618,451.80/853,451.10 = 346,516.44/x - Step 3: Cross multiply
618,451.80x = 853,451.10 × 346,516.44 - Step 4: Simplify right side
618,451.80x = 295,734,836,886.08 - Step 5: Solve for x
x = 295,734,836,886.08/618,451.80 - Step 6: Final answer
x = 478,185.75
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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.