Finding the Fourth Proportional to 485,663.94, 670,639.23 and 304,686.99
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Solution
The fourth proportional to 485,663.94, 670,639.23 and 304,686.99 is: 420,733.42
Step by Step Solution
- Step 1: Write the proportion equation
485,663.94 : 670,639.23 = 304,686.99 : x - Step 2: Convert to fraction form
485,663.94/670,639.23 = 304,686.99/x - Step 3: Cross multiply
485,663.94x = 670,639.23 × 304,686.99 - Step 4: Simplify right side
485,663.94x = 204,335,048,364.62 - Step 5: Solve for x
x = 204,335,048,364.62/485,663.94 - Step 6: Final answer
x = 420,733.42
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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.