Finding the Fourth Proportional to 688,992.26, 1,033,421.54 and 209,224.19
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Solution
The fourth proportional to 688,992.26, 1,033,421.54 and 209,224.19 is: 313,815.99
Step by Step Solution
- Step 1: Write the proportion equation
688,992.26 : 1,033,421.54 = 209,224.19 : x - Step 2: Convert to fraction form
688,992.26/1,033,421.54 = 209,224.19/x - Step 3: Cross multiply
688,992.26x = 1,033,421.54 × 209,224.19 - Step 4: Simplify right side
688,992.26x = 216,216,786,172.49 - Step 5: Solve for x
x = 216,216,786,172.49/688,992.26 - Step 6: Final answer
x = 313,815.99
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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.