Finding the Fourth Proportional to 457,486.77, 631,180.51 and 276,129.80
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Solution
The fourth proportional to 457,486.77, 631,180.51 and 276,129.80 is: 380,967.84
Step by Step Solution
- Step 1: Write the proportion equation
457,486.77 : 631,180.51 = 276,129.80 : x - Step 2: Convert to fraction form
457,486.77/631,180.51 = 276,129.80/x - Step 3: Cross multiply
457,486.77x = 631,180.51 × 276,129.80 - Step 4: Simplify right side
457,486.77x = 174,287,747,990.20 - Step 5: Solve for x
x = 174,287,747,990.20/457,486.77 - Step 6: Final answer
x = 380,967.84
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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.