Finding the Fourth Proportional to 756,366.81, 1,043,786.19 and 416,835.06
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Solution
The fourth proportional to 756,366.81, 1,043,786.19 and 416,835.06 is: 575,232.38
Step by Step Solution
- Step 1: Write the proportion equation
756,366.81 : 1,043,786.19 = 416,835.06 : x - Step 2: Convert to fraction form
756,366.81/1,043,786.19 = 416,835.06/x - Step 3: Cross multiply
756,366.81x = 1,043,786.19 × 416,835.06 - Step 4: Simplify right side
756,366.81x = 435,086,679,135.82 - Step 5: Solve for x
x = 435,086,679,135.82/756,366.81 - Step 6: Final answer
x = 575,232.38
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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.