Finding the Fourth Proportional to 489,125.70, 733,688.55 and 423,515.70
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Solution
The fourth proportional to 489,125.70, 733,688.55 and 423,515.70 is: 635,273.55
Step by Step Solution
- Step 1: Write the proportion equation
489,125.70 : 733,688.55 = 423,515.70 : x - Step 2: Convert to fraction form
489,125.70/733,688.55 = 423,515.70/x - Step 3: Cross multiply
489,125.70x = 733,688.55 × 423,515.70 - Step 4: Simplify right side
489,125.70x = 310,728,619,835.24 - Step 5: Solve for x
x = 310,728,619,835.24/489,125.70 - Step 6: Final answer
x = 635,273.55
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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.