Finding the Fourth Proportional to 457,639.97, 631,476.61 and 253,690.70
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Solution
The fourth proportional to 457,639.97, 631,476.61 and 253,690.70 is: 350,056.27
Step by Step Solution
- Step 1: Write the proportion equation
457,639.97 : 631,476.61 = 253,690.70 : x - Step 2: Convert to fraction form
457,639.97/631,476.61 = 253,690.70/x - Step 3: Cross multiply
457,639.97x = 631,476.61 × 253,690.70 - Step 4: Simplify right side
457,639.97x = 160,199,739,432.92 - Step 5: Solve for x
x = 160,199,739,432.92/457,639.97 - Step 6: Final answer
x = 350,056.27
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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.