Finding the Fourth Proportional to 1,381,474.36, 1,906,405.68 and 769,626.28
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Solution
The fourth proportional to 1,381,474.36, 1,906,405.68 and 769,626.28 is: 1,062,068.15
Step by Step Solution
- Step 1: Write the proportion equation
1,381,474.36 : 1,906,405.68 = 769,626.28 : x - Step 2: Convert to fraction form
1,381,474.36/1,906,405.68 = 769,626.28/x - Step 3: Cross multiply
1,381,474.36x = 1,906,405.68 × 769,626.28 - Step 4: Simplify right side
1,381,474.36x = 1,467,219,911,669.27 - Step 5: Solve for x
x = 1,467,219,911,669.27/1,381,474.36 - Step 6: Final answer
x = 1,062,068.15
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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.