Finding the Fourth Proportional to 939,229.66, 1,294,347.09 and 921,954.79
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Solution
The fourth proportional to 939,229.66, 1,294,347.09 and 921,954.79 is: 1,270,540.69
Step by Step Solution
- Step 1: Write the proportion equation
939,229.66 : 1,294,347.09 = 921,954.79 : x - Step 2: Convert to fraction form
939,229.66/1,294,347.09 = 921,954.79/x - Step 3: Cross multiply
939,229.66x = 1,294,347.09 × 921,954.79 - Step 4: Simplify right side
939,229.66x = 1,193,329,499,548.06 - Step 5: Solve for x
x = 1,193,329,499,548.06/939,229.66 - Step 6: Final answer
x = 1,270,540.69
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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.