Finding the Fourth Proportional to 916,713.26, 1,265,045.26 and 508,791.18
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Solution
The fourth proportional to 916,713.26, 1,265,045.26 and 508,791.18 is: 702,121.26
Step by Step Solution
- Step 1: Write the proportion equation
916,713.26 : 1,265,045.26 = 508,791.18 : x - Step 2: Convert to fraction form
916,713.26/1,265,045.26 = 508,791.18/x - Step 3: Cross multiply
916,713.26x = 1,265,045.26 × 508,791.18 - Step 4: Simplify right side
916,713.26x = 643,643,870,588.81 - Step 5: Solve for x
x = 643,643,870,588.81/916,713.26 - Step 6: Final answer
x = 702,121.26
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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.