Finding the Fourth Proportional to 420,805.37, 580,715.12 and 239,528.99
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Solution
The fourth proportional to 420,805.37, 580,715.12 and 239,528.99 is: 330,552.12
Step by Step Solution
- Step 1: Write the proportion equation
420,805.37 : 580,715.12 = 239,528.99 : x - Step 2: Convert to fraction form
420,805.37/580,715.12 = 239,528.99/x - Step 3: Cross multiply
420,805.37x = 580,715.12 × 239,528.99 - Step 4: Simplify right side
420,805.37x = 139,098,108,221.94 - Step 5: Solve for x
x = 139,098,108,221.94/420,805.37 - Step 6: Final answer
x = 330,552.12
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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.