Finding the Fourth Proportional to 528,645.26, 729,531.26 and 286,927.92
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Solution
The fourth proportional to 528,645.26, 729,531.26 and 286,927.92 is: 395,960.96
Step by Step Solution
- Step 1: Write the proportion equation
528,645.26 : 729,531.26 = 286,927.92 : x - Step 2: Convert to fraction form
528,645.26/729,531.26 = 286,927.92/x - Step 3: Cross multiply
528,645.26x = 729,531.26 × 286,927.92 - Step 4: Simplify right side
528,645.26x = 209,322,887,006.78 - Step 5: Solve for x
x = 209,322,887,006.78/528,645.26 - Step 6: Final answer
x = 395,960.96
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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.