Finding the Fourth Proportional to 971,990.20, 1,457,985.30 and 883,343.80
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Solution
The fourth proportional to 971,990.20, 1,457,985.30 and 883,343.80 is: 1,325,015.70
Step by Step Solution
- Step 1: Write the proportion equation
971,990.20 : 1,457,985.30 = 883,343.80 : x - Step 2: Convert to fraction form
971,990.20/1,457,985.30 = 883,343.80/x - Step 3: Cross multiply
971,990.20x = 1,457,985.30 × 883,343.80 - Step 4: Simplify right side
971,990.20x = 1,287,902,275,246.14 - Step 5: Solve for x
x = 1,287,902,275,246.14/971,990.20 - Step 6: Final answer
x = 1,325,015.70
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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.