Finding the Fourth Proportional to 853,787.48, 1,178,188.38 and 471,806
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Solution
The fourth proportional to 853,787.48, 1,178,188.38 and 471,806 is: 651,071.09
Step by Step Solution
- Step 1: Write the proportion equation
853,787.48 : 1,178,188.38 = 471,806 : x - Step 2: Convert to fraction form
853,787.48/1,178,188.38 = 471,806/x - Step 3: Cross multiply
853,787.48x = 1,178,188.38 × 471,806 - Step 4: Simplify right side
853,787.48x = 555,876,346,814.28 - Step 5: Solve for x
x = 555,876,346,814.28/853,787.48 - Step 6: Final answer
x = 651,071.09
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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.