Finding the Fourth Proportional to 689,302.20, 1,033,529.94 and 268,087.08
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Solution
The fourth proportional to 689,302.20, 1,033,529.94 and 268,087.08 is: 401,965.96
Step by Step Solution
- Step 1: Write the proportion equation
689,302.20 : 1,033,529.94 = 268,087.08 : x - Step 2: Convert to fraction form
689,302.20/1,033,529.94 = 268,087.08/x - Step 3: Cross multiply
689,302.20x = 1,033,529.94 × 268,087.08 - Step 4: Simplify right side
689,302.20x = 277,076,023,707.18 - Step 5: Solve for x
x = 277,076,023,707.18/689,302.20 - Step 6: Final answer
x = 401,965.96
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1.5x scale
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.