Finding the Fourth Proportional to 681,242.13, 940,115.01 and 371,143.19
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Solution
The fourth proportional to 681,242.13, 940,115.01 and 371,143.19 is: 512,178.07
Step by Step Solution
- Step 1: Write the proportion equation
681,242.13 : 940,115.01 = 371,143.19 : x - Step 2: Convert to fraction form
681,242.13/940,115.01 = 371,143.19/x - Step 3: Cross multiply
681,242.13x = 940,115.01 × 371,143.19 - Step 4: Simplify right side
681,242.13x = 348,917,279,077.71 - Step 5: Solve for x
x = 348,917,279,077.71/681,242.13 - Step 6: Final answer
x = 512,178.07
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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.