Finding the Fourth Proportional to 689,674.37, 1,033,840.60 and 329,751.68
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Solution
The fourth proportional to 689,674.37, 1,033,840.60 and 329,751.68 is: 494,306.71
Step by Step Solution
- Step 1: Write the proportion equation
689,674.37 : 1,033,840.60 = 329,751.68 : x - Step 2: Convert to fraction form
689,674.37/1,033,840.60 = 329,751.68/x - Step 3: Cross multiply
689,674.37x = 1,033,840.60 × 329,751.68 - Step 4: Simplify right side
689,674.37x = 340,910,668,708.63 - Step 5: Solve for x
x = 340,910,668,708.63/689,674.37 - Step 6: Final answer
x = 494,306.71
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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.