Finding the Fourth Proportional to 489,221.10, 733,831.65 and 419,237.10
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Solution
The fourth proportional to 489,221.10, 733,831.65 and 419,237.10 is: 628,855.65
Step by Step Solution
- Step 1: Write the proportion equation
489,221.10 : 733,831.65 = 419,237.10 : x - Step 2: Convert to fraction form
489,221.10/733,831.65 = 419,237.10/x - Step 3: Cross multiply
489,221.10x = 733,831.65 × 419,237.10 - Step 4: Simplify right side
489,221.10x = 307,649,452,834.22 - Step 5: Solve for x
x = 307,649,452,834.22/489,221.10 - Step 6: Final answer
x = 628,855.65
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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.