Finding the Fourth Proportional to 457,228.17, 631,282.97 and 285,407.73
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Solution
The fourth proportional to 457,228.17, 631,282.97 and 285,407.73 is: 394,054.99
Step by Step Solution
- Step 1: Write the proportion equation
457,228.17 : 631,282.97 = 285,407.73 : x - Step 2: Convert to fraction form
457,228.17/631,282.97 = 285,407.73/x - Step 3: Cross multiply
457,228.17x = 631,282.97 × 285,407.73 - Step 4: Simplify right side
457,228.17x = 180,173,040,168.88 - Step 5: Solve for x
x = 180,173,040,168.88/457,228.17 - Step 6: Final answer
x = 394,054.99
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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.