Finding the Fourth Proportional to 3,399,113.80, 4,690,910.82 and 1,871,363.08
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Solution
The fourth proportional to 3,399,113.80, 4,690,910.82 and 1,871,363.08 is: 2,582,554.70
Step by Step Solution
- Step 1: Write the proportion equation
3,399,113.80 : 4,690,910.82 = 1,871,363.08 : x - Step 2: Convert to fraction form
3,399,113.80/4,690,910.82 = 1,871,363.08/x - Step 3: Cross multiply
3,399,113.80x = 4,690,910.82 × 1,871,363.08 - Step 4: Simplify right side
3,399,113.80x = 8,778,397,320,120.53 - Step 5: Solve for x
x = 8,778,397,320,120.53/3,399,113.80 - Step 6: Final answer
x = 2,582,554.70
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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.