Finding the Fourth Proportional to 457,585.41, 631,254.29 and 287,913.09
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Solution
The fourth proportional to 457,585.41, 631,254.29 and 287,913.09 is: 397,185.68
Step by Step Solution
- Step 1: Write the proportion equation
457,585.41 : 631,254.29 = 287,913.09 : x - Step 2: Convert to fraction form
457,585.41/631,254.29 = 287,913.09/x - Step 3: Cross multiply
457,585.41x = 631,254.29 × 287,913.09 - Step 4: Simplify right side
457,585.41x = 181,746,371,770.09 - Step 5: Solve for x
x = 181,746,371,770.09/457,585.41 - Step 6: Final answer
x = 397,185.68
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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.