Finding the Fourth Proportional to 1,447,471.40, 1,997,474.10 and 802,905.80
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Solution
The fourth proportional to 1,447,471.40, 1,997,474.10 and 802,905.80 is: 1,107,989.80
Step by Step Solution
- Step 1: Write the proportion equation
1,447,471.40 : 1,997,474.10 = 802,905.80 : x - Step 2: Convert to fraction form
1,447,471.40/1,997,474.10 = 802,905.80/x - Step 3: Cross multiply
1,447,471.40x = 1,997,474.10 × 802,905.80 - Step 4: Simplify right side
1,447,471.40x = 1,603,783,540,239.78 - Step 5: Solve for x
x = 1,603,783,540,239.78/1,447,471.40 - Step 6: Final answer
x = 1,107,989.80
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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.