Finding the Fourth Proportional to 689,936.05, 952,110.30 and 388,130.05
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Solution
The fourth proportional to 689,936.05, 952,110.30 and 388,130.05 is: 535,618.65
Step by Step Solution
- Step 1: Write the proportion equation
689,936.05 : 952,110.30 = 388,130.05 : x - Step 2: Convert to fraction form
689,936.05/952,110.30 = 388,130.05/x - Step 3: Cross multiply
689,936.05x = 952,110.30 × 388,130.05 - Step 4: Simplify right side
689,936.05x = 369,542,618,344.52 - Step 5: Solve for x
x = 369,542,618,344.52/689,936.05 - Step 6: Final answer
x = 535,618.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.