Finding the Fourth Proportional to 681,141.08, 939,974.34 and 394,827.08
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Solution
The fourth proportional to 681,141.08, 939,974.34 and 394,827.08 is: 544,861.17
Step by Step Solution
- Step 1: Write the proportion equation
681,141.08 : 939,974.34 = 394,827.08 : x - Step 2: Convert to fraction form
681,141.08/939,974.34 = 394,827.08/x - Step 3: Cross multiply
681,141.08x = 939,974.34 × 394,827.08 - Step 4: Simplify right side
681,141.08x = 371,127,323,937.13 - Step 5: Solve for x
x = 371,127,323,937.13/681,141.08 - Step 6: Final answer
x = 544,861.17
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1.5x scale
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.