Finding the Fourth Proportional to 389,397.08, 537,611.25 and 298,578.59
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Solution
The fourth proportional to 389,397.08, 537,611.25 and 298,578.59 is: 412,224.99
Step by Step Solution
- Step 1: Write the proportion equation
389,397.08 : 537,611.25 = 298,578.59 : x - Step 2: Convert to fraction form
389,397.08/537,611.25 = 298,578.59/x - Step 3: Cross multiply
389,397.08x = 537,611.25 × 298,578.59 - Step 4: Simplify right side
389,397.08x = 160,519,208,993.14 - Step 5: Solve for x
x = 160,519,208,993.14/389,397.08 - Step 6: Final answer
x = 412,224.99
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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.