Finding the Fourth Proportional to 486,497.36, 671,366.76 and 271,637.12
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Solution
The fourth proportional to 486,497.36, 671,366.76 and 271,637.12 is: 374,859.45
Step by Step Solution
- Step 1: Write the proportion equation
486,497.36 : 671,366.76 = 271,637.12 : x - Step 2: Convert to fraction form
486,497.36/671,366.76 = 271,637.12/x - Step 3: Cross multiply
486,497.36x = 671,366.76 × 271,637.12 - Step 4: Simplify right side
486,497.36x = 182,368,133,150.13 - Step 5: Solve for x
x = 182,368,133,150.13/486,497.36 - Step 6: Final answer
x = 374,859.45
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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.