Finding the Fourth Proportional to 1,299,120.66, 1,948,555.70 and 400,321.07
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Solution
The fourth proportional to 1,299,120.66, 1,948,555.70 and 400,321.07 is: 600,442.99
Step by Step Solution
- Step 1: Write the proportion equation
1,299,120.66 : 1,948,555.70 = 400,321.07 : x - Step 2: Convert to fraction form
1,299,120.66/1,948,555.70 = 400,321.07/x - Step 3: Cross multiply
1,299,120.66x = 1,948,555.70 × 400,321.07 - Step 4: Simplify right side
1,299,120.66x = 780,047,891,034.22 - Step 5: Solve for x
x = 780,047,891,034.22/1,299,120.66 - Step 6: Final answer
x = 600,442.99
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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.