Finding the Fourth Proportional to 855,635.43, 1,283,624.40 and 315,894.99
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Solution
The fourth proportional to 855,635.43, 1,283,624.40 and 315,894.99 is: 473,905.72
Step by Step Solution
- Step 1: Write the proportion equation
855,635.43 : 1,283,624.40 = 315,894.99 : x - Step 2: Convert to fraction form
855,635.43/1,283,624.40 = 315,894.99/x - Step 3: Cross multiply
855,635.43x = 1,283,624.40 × 315,894.99 - Step 4: Simplify right side
855,635.43x = 405,490,522,999.95 - Step 5: Solve for x
x = 405,490,522,999.95/855,635.43 - Step 6: Final answer
x = 473,905.72
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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.