Finding the Fourth Proportional to 678,372.70, 1,017,263.80 and 341,202.91
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Solution
The fourth proportional to 678,372.70, 1,017,263.80 and 341,202.91 is: 511,655.86
Step by Step Solution
- Step 1: Write the proportion equation
678,372.70 : 1,017,263.80 = 341,202.91 : x - Step 2: Convert to fraction form
678,372.70/1,017,263.80 = 341,202.91/x - Step 3: Cross multiply
678,372.70x = 1,017,263.80 × 341,202.91 - Step 4: Simplify right side
678,372.70x = 347,093,368,797.66 - Step 5: Solve for x
x = 347,093,368,797.66/678,372.70 - Step 6: Final answer
x = 511,655.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.