Finding the Fourth Proportional to 790,202.79, 1,185,183.87 and 257,722.96
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Solution
The fourth proportional to 790,202.79, 1,185,183.87 and 257,722.96 is: 386,545.20
Step by Step Solution
- Step 1: Write the proportion equation
790,202.79 : 1,185,183.87 = 257,722.96 : x - Step 2: Convert to fraction form
790,202.79/1,185,183.87 = 257,722.96/x - Step 3: Cross multiply
790,202.79x = 1,185,183.87 × 257,722.96 - Step 4: Simplify right side
790,202.79x = 305,449,095,120.66 - Step 5: Solve for x
x = 305,449,095,120.66/790,202.79 - Step 6: Final answer
x = 386,545.20
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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.