Finding the Fourth Proportional to 1,375,611.42, 1,898,403.05 and 763,764.21
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Solution
The fourth proportional to 1,375,611.42, 1,898,403.05 and 763,764.21 is: 1,054,027.53
Step by Step Solution
- Step 1: Write the proportion equation
1,375,611.42 : 1,898,403.05 = 763,764.21 : x - Step 2: Convert to fraction form
1,375,611.42/1,898,403.05 = 763,764.21/x - Step 3: Cross multiply
1,375,611.42x = 1,898,403.05 × 763,764.21 - Step 4: Simplify right side
1,375,611.42x = 1,449,932,305,744.84 - Step 5: Solve for x
x = 1,449,932,305,744.84/1,375,611.42 - Step 6: Final answer
x = 1,054,027.53
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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.