Finding the Fourth Proportional to 458,232.80, 687,349.20 and 399,183.80
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Solution
The fourth proportional to 458,232.80, 687,349.20 and 399,183.80 is: 598,775.70
Step by Step Solution
- Step 1: Write the proportion equation
458,232.80 : 687,349.20 = 399,183.80 : x - Step 2: Convert to fraction form
458,232.80/687,349.20 = 399,183.80/x - Step 3: Cross multiply
458,232.80x = 687,349.20 × 399,183.80 - Step 4: Simplify right side
458,232.80x = 274,378,665,582.96 - Step 5: Solve for x
x = 274,378,665,582.96/458,232.80 - Step 6: Final answer
x = 598,775.70
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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.