Finding the Fourth Proportional to 689,967.36, 952,151.04 and 388,163.84
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Solution
The fourth proportional to 689,967.36, 952,151.04 and 388,163.84 is: 535,663.90
Step by Step Solution
- Step 1: Write the proportion equation
689,967.36 : 952,151.04 = 388,163.84 : x - Step 2: Convert to fraction form
689,967.36/952,151.04 = 388,163.84/x - Step 3: Cross multiply
689,967.36x = 952,151.04 × 388,163.84 - Step 4: Simplify right side
689,967.36x = 369,590,603,946.39 - Step 5: Solve for x
x = 369,590,603,946.39/689,967.36 - Step 6: Final answer
x = 535,663.90
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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.