Finding the Fourth Proportional to 421,503.18, 632,700.36 and 411,984.26
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Solution
The fourth proportional to 421,503.18, 632,700.36 and 411,984.26 is: 618,411.92
Step by Step Solution
- Step 1: Write the proportion equation
421,503.18 : 632,700.36 = 411,984.26 : x - Step 2: Convert to fraction form
421,503.18/632,700.36 = 411,984.26/x - Step 3: Cross multiply
421,503.18x = 632,700.36 × 411,984.26 - Step 4: Simplify right side
421,503.18x = 260,662,589,616.33 - Step 5: Solve for x
x = 260,662,589,616.33/421,503.18 - Step 6: Final answer
x = 618,411.92
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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.