Finding the Fourth Proportional to 1,543,872.96, 2,130,662.88 and 971,403.84
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Solution
The fourth proportional to 1,543,872.96, 2,130,662.88 and 971,403.84 is: 1,340,611.67
Step by Step Solution
- Step 1: Write the proportion equation
1,543,872.96 : 2,130,662.88 = 971,403.84 : x - Step 2: Convert to fraction form
1,543,872.96/2,130,662.88 = 971,403.84/x - Step 3: Cross multiply
1,543,872.96x = 2,130,662.88 × 971,403.84 - Step 4: Simplify right side
1,543,872.96x = 2,069,734,103,377.46 - Step 5: Solve for x
x = 2,069,734,103,377.46/1,543,872.96 - Step 6: Final answer
x = 1,340,611.67
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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.