Finding the Fourth Proportional to 1,288,920.67, 1,934,268.54 and 447,472.42
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Solution
The fourth proportional to 1,288,920.67, 1,934,268.54 and 447,472.42 is: 671,516.75
Step by Step Solution
- Step 1: Write the proportion equation
1,288,920.67 : 1,934,268.54 = 447,472.42 : x - Step 2: Convert to fraction form
1,288,920.67/1,934,268.54 = 447,472.42/x - Step 3: Cross multiply
1,288,920.67x = 1,934,268.54 × 447,472.42 - Step 4: Simplify right side
1,288,920.67x = 865,531,824,523.67 - Step 5: Solve for x
x = 865,531,824,523.67/1,288,920.67 - Step 6: Final answer
x = 671,516.75
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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.