Finding the Fourth Proportional to 853,678.48, 1,280,517.76 and 292,717.84
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Solution
The fourth proportional to 853,678.48, 1,280,517.76 and 292,717.84 is: 439,076.77
Step by Step Solution
- Step 1: Write the proportion equation
853,678.48 : 1,280,517.76 = 292,717.84 : x - Step 2: Convert to fraction form
853,678.48/1,280,517.76 = 292,717.84/x - Step 3: Cross multiply
853,678.48x = 1,280,517.76 × 292,717.84 - Step 4: Simplify right side
853,678.48x = 374,830,392,788.84 - Step 5: Solve for x
x = 374,830,392,788.84/853,678.48 - Step 6: Final answer
x = 439,076.77
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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.