Finding the Fourth Proportional to 1,386,307.26, 1,912,305.81 and 834,639.42
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Solution
The fourth proportional to 1,386,307.26, 1,912,305.81 and 834,639.42 is: 1,151,321.83
Step by Step Solution
- Step 1: Write the proportion equation
1,386,307.26 : 1,912,305.81 = 834,639.42 : x - Step 2: Convert to fraction form
1,386,307.26/1,912,305.81 = 834,639.42/x - Step 3: Cross multiply
1,386,307.26x = 1,912,305.81 × 834,639.42 - Step 4: Simplify right side
1,386,307.26x = 1,596,085,812,121.03 - Step 5: Solve for x
x = 1,596,085,812,121.03/1,386,307.26 - Step 6: Final answer
x = 1,151,321.83
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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.