Finding the Fourth Proportional to 686,522.80, 1,029,169.80 and 265,658.80
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Solution
The fourth proportional to 686,522.80, 1,029,169.80 and 265,658.80 is: 398,250.45
Step by Step Solution
- Step 1: Write the proportion equation
686,522.80 : 1,029,169.80 = 265,658.80 : x - Step 2: Convert to fraction form
686,522.80/1,029,169.80 = 265,658.80/x - Step 3: Cross multiply
686,522.80x = 1,029,169.80 × 265,658.80 - Step 4: Simplify right side
686,522.80x = 273,408,014,064.24 - Step 5: Solve for x
x = 273,408,014,064.24/686,522.80 - Step 6: Final answer
x = 398,250.45
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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.