Finding the Fourth Proportional to 756,309.76, 1,043,702.49 and 416,778.28
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Solution
The fourth proportional to 756,309.76, 1,043,702.49 and 416,778.28 is: 575,151.28
Step by Step Solution
- Step 1: Write the proportion equation
756,309.76 : 1,043,702.49 = 416,778.28 : x - Step 2: Convert to fraction form
756,309.76/1,043,702.49 = 416,778.28/x - Step 3: Cross multiply
756,309.76x = 1,043,702.49 × 416,778.28 - Step 4: Simplify right side
756,309.76x = 434,992,528,613.92 - Step 5: Solve for x
x = 434,992,528,613.92/756,309.76 - Step 6: Final answer
x = 575,151.28
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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.