Finding the Fourth Proportional to 819,625.69, 1,131,164.09 and 497,310.49
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Solution
The fourth proportional to 819,625.69, 1,131,164.09 and 497,310.49 is: 686,337.40
Step by Step Solution
- Step 1: Write the proportion equation
819,625.69 : 1,131,164.09 = 497,310.49 : x - Step 2: Convert to fraction form
819,625.69/1,131,164.09 = 497,310.49/x - Step 3: Cross multiply
819,625.69x = 1,131,164.09 × 497,310.49 - Step 4: Simplify right side
819,625.69x = 562,539,767,868.30 - Step 5: Solve for x
x = 562,539,767,868.30/819,625.69 - Step 6: Final answer
x = 686,337.40
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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.