Finding the Fourth Proportional to 863,146.94, 1,191,213.71 and 476,038.09
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Solution
The fourth proportional to 863,146.94, 1,191,213.71 and 476,038.09 is: 656,971.68
Step by Step Solution
- Step 1: Write the proportion equation
863,146.94 : 1,191,213.71 = 476,038.09 : x - Step 2: Convert to fraction form
863,146.94/1,191,213.71 = 476,038.09/x - Step 3: Cross multiply
863,146.94x = 1,191,213.71 × 476,038.09 - Step 4: Simplify right side
863,146.94x = 567,063,092,144.05 - Step 5: Solve for x
x = 567,063,092,144.05/863,146.94 - Step 6: Final answer
x = 656,971.68
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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.