Finding the Fourth Proportional to 765,979.23, 1,057,107.54 and 548,208.35
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Solution
The fourth proportional to 765,979.23, 1,057,107.54 and 548,208.35 is: 756,567.75
Step by Step Solution
- Step 1: Write the proportion equation
765,979.23 : 1,057,107.54 = 548,208.35 : x - Step 2: Convert to fraction form
765,979.23/1,057,107.54 = 548,208.35/x - Step 3: Cross multiply
765,979.23x = 1,057,107.54 × 548,208.35 - Step 4: Simplify right side
765,979.23x = 579,515,182,331.08 - Step 5: Solve for x
x = 579,515,182,331.08/765,979.23 - Step 6: Final answer
x = 756,567.75
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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.