Finding the Fourth Proportional to 457,431.44, 631,259.10 and 253,485.79
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Solution
The fourth proportional to 457,431.44, 631,259.10 and 253,485.79 is: 349,812.45
Step by Step Solution
- Step 1: Write the proportion equation
457,431.44 : 631,259.10 = 253,485.79 : x - Step 2: Convert to fraction form
457,431.44/631,259.10 = 253,485.79/x - Step 3: Cross multiply
457,431.44x = 631,259.10 × 253,485.79 - Step 4: Simplify right side
457,431.44x = 160,015,210,080.04 - Step 5: Solve for x
x = 160,015,210,080.04/457,431.44 - Step 6: Final answer
x = 349,812.45
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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.