Finding the Fourth Proportional to 689,137.98, 1,033,707.04 and 215,860.26
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Solution
The fourth proportional to 689,137.98, 1,033,707.04 and 215,860.26 is: 323,790.41
Step by Step Solution
- Step 1: Write the proportion equation
689,137.98 : 1,033,707.04 = 215,860.26 : x - Step 2: Convert to fraction form
689,137.98/1,033,707.04 = 215,860.26/x - Step 3: Cross multiply
689,137.98x = 1,033,707.04 × 215,860.26 - Step 4: Simplify right side
689,137.98x = 223,136,270,418.23 - Step 5: Solve for x
x = 223,136,270,418.23/689,137.98 - Step 6: Final answer
x = 323,790.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.