Finding the Fourth Proportional to 1,921,330.76, 2,649,720.28 and 1,594,125.74
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Solution
The fourth proportional to 1,921,330.76, 2,649,720.28 and 1,594,125.74 is: 2,198,469.62
Step by Step Solution
- Step 1: Write the proportion equation
1,921,330.76 : 2,649,720.28 = 1,594,125.74 : x - Step 2: Convert to fraction form
1,921,330.76/2,649,720.28 = 1,594,125.74/x - Step 3: Cross multiply
1,921,330.76x = 2,649,720.28 × 1,594,125.74 - Step 4: Simplify right side
1,921,330.76x = 4,223,987,296,843.20 - Step 5: Solve for x
x = 4,223,987,296,843.20/1,921,330.76 - Step 6: Final answer
x = 2,198,469.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.