Finding the Fourth Proportional to 1,286,309.21, 1,775,094.62 and 705,520.44
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Solution
The fourth proportional to 1,286,309.21, 1,775,094.62 and 705,520.44 is: 973,611.58
Step by Step Solution
- Step 1: Write the proportion equation
1,286,309.21 : 1,775,094.62 = 705,520.44 : x - Step 2: Convert to fraction form
1,286,309.21/1,775,094.62 = 705,520.44/x - Step 3: Cross multiply
1,286,309.21x = 1,775,094.62 × 705,520.44 - Step 4: Simplify right side
1,286,309.21x = 1,252,365,533,816.43 - Step 5: Solve for x
x = 1,252,365,533,816.43/1,286,309.21 - Step 6: Final answer
x = 973,611.58
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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.