Finding the Fourth Proportional to 1,381,327.68, 1,906,202.88 and 769,479.36
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Solution
The fourth proportional to 1,381,327.68, 1,906,202.88 and 769,479.36 is: 1,061,865.18
Step by Step Solution
- Step 1: Write the proportion equation
1,381,327.68 : 1,906,202.88 = 769,479.36 : x - Step 2: Convert to fraction form
1,381,327.68/1,906,202.88 = 769,479.36/x - Step 3: Cross multiply
1,381,327.68x = 1,906,202.88 × 769,479.36 - Step 4: Simplify right side
1,381,327.68x = 1,466,783,772,132.56 - Step 5: Solve for x
x = 1,466,783,772,132.56/1,381,327.68 - Step 6: Final answer
x = 1,061,865.18
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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.