Finding the Fourth Proportional to 778,864.26, 1,074,832.80 and 421,168.26
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Solution
The fourth proportional to 778,864.26, 1,074,832.80 and 421,168.26 is: 581,212.26
Step by Step Solution
- Step 1: Write the proportion equation
778,864.26 : 1,074,832.80 = 421,168.26 : x - Step 2: Convert to fraction form
778,864.26/1,074,832.80 = 421,168.26/x - Step 3: Cross multiply
778,864.26x = 1,074,832.80 × 421,168.26 - Step 4: Simplify right side
778,864.26x = 452,685,460,166.93 - Step 5: Solve for x
x = 452,685,460,166.93/778,864.26 - Step 6: Final answer
x = 581,212.26
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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.