Finding the Fourth Proportional to 681,378.99, 940,344.29 and 375,455.00
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Solution
The fourth proportional to 681,378.99, 940,344.29 and 375,455.00 is: 518,150.64
Step by Step Solution
- Step 1: Write the proportion equation
681,378.99 : 940,344.29 = 375,455.00 : x - Step 2: Convert to fraction form
681,378.99/940,344.29 = 375,455.00/x - Step 3: Cross multiply
681,378.99x = 940,344.29 × 375,455.00 - Step 4: Simplify right side
681,378.99x = 353,056,958,822.95 - Step 5: Solve for x
x = 353,056,958,822.95/681,378.99 - Step 6: Final answer
x = 518,150.64
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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.