Finding the Fourth Proportional to 1,361,529.81, 1,878,082.20 and 838,324.62
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Solution
The fourth proportional to 1,361,529.81, 1,878,082.20 and 838,324.62 is: 1,156,377.58
Step by Step Solution
- Step 1: Write the proportion equation
1,361,529.81 : 1,878,082.20 = 838,324.62 : x - Step 2: Convert to fraction form
1,361,529.81/1,878,082.20 = 838,324.62/x - Step 3: Cross multiply
1,361,529.81x = 1,878,082.20 × 838,324.62 - Step 4: Simplify right side
1,361,529.81x = 1,574,442,546,643.76 - Step 5: Solve for x
x = 1,574,442,546,643.76/1,361,529.81 - Step 6: Final answer
x = 1,156,377.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.