Finding the Fourth Proportional to 669,112.93, 923,351.94 and 378,718.26
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Solution
The fourth proportional to 669,112.93, 923,351.94 and 378,718.26 is: 522,617.67
Step by Step Solution
- Step 1: Write the proportion equation
669,112.93 : 923,351.94 = 378,718.26 : x - Step 2: Convert to fraction form
669,112.93/923,351.94 = 378,718.26/x - Step 3: Cross multiply
669,112.93x = 923,351.94 × 378,718.26 - Step 4: Simplify right side
669,112.93x = 349,690,239,218.78 - Step 5: Solve for x
x = 349,690,239,218.78/669,112.93 - Step 6: Final answer
x = 522,617.67
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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.