Finding the Fourth Proportional to 1,089,328.80, 1,635,324.40 and 616,343.20
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Solution
The fourth proportional to 1,089,328.80, 1,635,324.40 and 616,343.20 is: 925,267.99
Step by Step Solution
- Step 1: Write the proportion equation
1,089,328.80 : 1,635,324.40 = 616,343.20 : x - Step 2: Convert to fraction form
1,089,328.80/1,635,324.40 = 616,343.20/x - Step 3: Cross multiply
1,089,328.80x = 1,635,324.40 × 616,343.20 - Step 4: Simplify right side
1,089,328.80x = 1,007,921,073,734.08 - Step 5: Solve for x
x = 1,007,921,073,734.08/1,089,328.80 - Step 6: Final answer
x = 925,267.99
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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.