Finding the Fourth Proportional to 681,378.48, 940,343.59 and 375,454.49
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Solution
The fourth proportional to 681,378.48, 940,343.59 and 375,454.49 is: 518,149.95
Step by Step Solution
- Step 1: Write the proportion equation
681,378.48 : 940,343.59 = 375,454.49 : x - Step 2: Convert to fraction form
681,378.48/940,343.59 = 375,454.49/x - Step 3: Cross multiply
681,378.48x = 940,343.59 × 375,454.49 - Step 4: Simplify right side
681,378.48x = 353,056,228,162.52 - Step 5: Solve for x
x = 353,056,228,162.52/681,378.48 - Step 6: Final answer
x = 518,149.95
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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.