Finding the Fourth Proportional to 528,659.09, 729,529.97 and 286,936.48
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Solution
The fourth proportional to 528,659.09, 729,529.97 and 286,936.48 is: 395,961.72
Step by Step Solution
- Step 1: Write the proportion equation
528,659.09 : 729,529.97 = 286,936.48 : x - Step 2: Convert to fraction form
528,659.09/729,529.97 = 286,936.48/x - Step 3: Cross multiply
528,659.09x = 729,529.97 × 286,936.48 - Step 4: Simplify right side
528,659.09x = 209,328,761,646.31 - Step 5: Solve for x
x = 209,328,761,646.31/528,659.09 - Step 6: Final answer
x = 395,961.72
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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.