Finding the Fourth Proportional to 1,395,911.64, 2,089,734.02 and 861,715.02
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Solution
The fourth proportional to 1,395,911.64, 2,089,734.02 and 861,715.02 is: 1,290,020.90
Step by Step Solution
- Step 1: Write the proportion equation
1,395,911.64 : 2,089,734.02 = 861,715.02 : x - Step 2: Convert to fraction form
1,395,911.64/2,089,734.02 = 861,715.02/x - Step 3: Cross multiply
1,395,911.64x = 2,089,734.02 × 861,715.02 - Step 4: Simplify right side
1,395,911.64x = 1,800,755,192,838.98 - Step 5: Solve for x
x = 1,800,755,192,838.98/1,395,911.64 - Step 6: Final answer
x = 1,290,020.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.