Finding the Fourth Proportional to 618,633.72, 853,674.12 and 363,935.70
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Solution
The fourth proportional to 618,633.72, 853,674.12 and 363,935.70 is: 502,207.49
Step by Step Solution
- Step 1: Write the proportion equation
618,633.72 : 853,674.12 = 363,935.70 : x - Step 2: Convert to fraction form
618,633.72/853,674.12 = 363,935.70/x - Step 3: Cross multiply
618,633.72x = 853,674.12 × 363,935.70 - Step 4: Simplify right side
618,633.72x = 310,682,488,434.08 - Step 5: Solve for x
x = 310,682,488,434.08/618,633.72 - Step 6: Final answer
x = 502,207.49
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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.