Finding the Fourth Proportional to 457,432.44, 631,260.48 and 253,486.79
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Solution
The fourth proportional to 457,432.44, 631,260.48 and 253,486.79 is: 349,813.83
Step by Step Solution
- Step 1: Write the proportion equation
457,432.44 : 631,260.48 = 253,486.79 : x - Step 2: Convert to fraction form
457,432.44/631,260.48 = 253,486.79/x - Step 3: Cross multiply
457,432.44x = 631,260.48 × 253,486.79 - Step 4: Simplify right side
457,432.44x = 160,016,192,729.06 - Step 5: Solve for x
x = 160,016,192,729.06/457,432.44 - Step 6: Final answer
x = 349,813.83
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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.