Finding the Fourth Proportional to 790,195.79, 1,185,173.37 and 257,715.96
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Solution
The fourth proportional to 790,195.79, 1,185,173.37 and 257,715.96 is: 386,534.70
Step by Step Solution
- Step 1: Write the proportion equation
790,195.79 : 1,185,173.37 = 257,715.96 : x - Step 2: Convert to fraction form
790,195.79/1,185,173.37 = 257,715.96/x - Step 3: Cross multiply
790,195.79x = 1,185,173.37 × 257,715.96 - Step 4: Simplify right side
790,195.79x = 305,438,092,815.99 - Step 5: Solve for x
x = 305,438,092,815.99/790,195.79 - Step 6: Final answer
x = 386,534.70
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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.