Finding the Fourth Proportional to 783,422.24, 1,174,313.20 and 328,274.08
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Solution
The fourth proportional to 783,422.24, 1,174,313.20 and 328,274.08 is: 492,067.45
Step by Step Solution
- Step 1: Write the proportion equation
783,422.24 : 1,174,313.20 = 328,274.08 : x - Step 2: Convert to fraction form
783,422.24/1,174,313.20 = 328,274.08/x - Step 3: Cross multiply
783,422.24x = 1,174,313.20 × 328,274.08 - Step 4: Simplify right side
783,422.24x = 385,496,585,361.86 - Step 5: Solve for x
x = 385,496,585,361.86/783,422.24 - Step 6: Final answer
x = 492,067.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.