Finding the Fourth Proportional to 691,640.58, 954,462.11 and 385,717.28
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Solution
The fourth proportional to 691,640.58, 954,462.11 and 385,717.28 is: 532,288.79
Step by Step Solution
- Step 1: Write the proportion equation
691,640.58 : 954,462.11 = 385,717.28 : x - Step 2: Convert to fraction form
691,640.58/954,462.11 = 385,717.28/x - Step 3: Cross multiply
691,640.58x = 954,462.11 × 385,717.28 - Step 4: Simplify right side
691,640.58x = 368,152,528,932.26 - Step 5: Solve for x
x = 368,152,528,932.26/691,640.58 - Step 6: Final answer
x = 532,288.79
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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.