Finding the Fourth Proportional to 1,618,701.40, 2,430,816.90 and 1,060,211.80
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Solution
The fourth proportional to 1,618,701.40, 2,430,816.90 and 1,060,211.80 is: 1,592,128.58
Step by Step Solution
- Step 1: Write the proportion equation
1,618,701.40 : 2,430,816.90 = 1,060,211.80 : x - Step 2: Convert to fraction form
1,618,701.40/2,430,816.90 = 1,060,211.80/x - Step 3: Cross multiply
1,618,701.40x = 2,430,816.90 × 1,060,211.80 - Step 4: Simplify right side
1,618,701.40x = 2,577,180,761,019.42 - Step 5: Solve for x
x = 2,577,180,761,019.42/1,618,701.40 - Step 6: Final answer
x = 1,592,128.58
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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.