Finding the Fourth Proportional to 1,683,467.70, 2,525,201.55 and 421,293.30
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Solution
The fourth proportional to 1,683,467.70, 2,525,201.55 and 421,293.30 is: 631,939.95
Step by Step Solution
- Step 1: Write the proportion equation
1,683,467.70 : 2,525,201.55 = 421,293.30 : x - Step 2: Convert to fraction form
1,683,467.70/2,525,201.55 = 421,293.30/x - Step 3: Cross multiply
1,683,467.70x = 2,525,201.55 × 421,293.30 - Step 4: Simplify right side
1,683,467.70x = 1,063,850,494,164.61 - Step 5: Solve for x
x = 1,063,850,494,164.61/1,683,467.70 - Step 6: Final answer
x = 631,939.95
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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.