Finding the Fourth Proportional to 765,939.94, 1,056,976.52 and 426,408.18
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Solution
The fourth proportional to 765,939.94, 1,056,976.52 and 426,408.18 is: 588,431.82
Step by Step Solution
- Step 1: Write the proportion equation
765,939.94 : 1,056,976.52 = 426,408.18 : x - Step 2: Convert to fraction form
765,939.94/1,056,976.52 = 426,408.18/x - Step 3: Cross multiply
765,939.94x = 1,056,976.52 × 426,408.18 - Step 4: Simplify right side
765,939.94x = 450,703,434,195.93 - Step 5: Solve for x
x = 450,703,434,195.93/765,939.94 - Step 6: Final answer
x = 588,431.82
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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.