Finding the Fourth Proportional to 819,787.91, 1,229,324.74 and 435,452.66
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Solution
The fourth proportional to 819,787.91, 1,229,324.74 and 435,452.66 is: 652,989.29
Step by Step Solution
- Step 1: Write the proportion equation
819,787.91 : 1,229,324.74 = 435,452.66 : x - Step 2: Convert to fraction form
819,787.91/1,229,324.74 = 435,452.66/x - Step 3: Cross multiply
819,787.91x = 1,229,324.74 × 435,452.66 - Step 4: Simplify right side
819,787.91x = 535,312,728,036.81 - Step 5: Solve for x
x = 535,312,728,036.81/819,787.91 - Step 6: Final answer
x = 652,989.29
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1.5x scale
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.