Finding the Fourth Proportional to 3,989,398.97, 5,984,939.13 and 1,293,513.95
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Solution
The fourth proportional to 3,989,398.97, 5,984,939.13 and 1,293,513.95 is: 1,940,543.50
Step by Step Solution
- Step 1: Write the proportion equation
3,989,398.97 : 5,984,939.13 = 1,293,513.95 : x - Step 2: Convert to fraction form
3,989,398.97/5,984,939.13 = 1,293,513.95/x - Step 3: Cross multiply
3,989,398.97x = 5,984,939.13 × 1,293,513.95 - Step 4: Simplify right side
3,989,398.97x = 7,741,602,254,555.86 - Step 5: Solve for x
x = 7,741,602,254,555.86/3,989,398.97 - Step 6: Final answer
x = 1,940,543.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.