Finding the Fourth Proportional to 648,138.20, 972,207.30 and 448,683.80
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Solution
The fourth proportional to 648,138.20, 972,207.30 and 448,683.80 is: 673,025.70
Step by Step Solution
- Step 1: Write the proportion equation
648,138.20 : 972,207.30 = 448,683.80 : x - Step 2: Convert to fraction form
648,138.20/972,207.30 = 448,683.80/x - Step 3: Cross multiply
648,138.20x = 972,207.30 × 448,683.80 - Step 4: Simplify right side
648,138.20x = 436,213,665,751.74 - Step 5: Solve for x
x = 436,213,665,751.74/648,138.20 - Step 6: Final answer
x = 673,025.70
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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.