Finding the Fourth Proportional to 494,821.80, 742,232.70 and 214,885.80
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Solution
The fourth proportional to 494,821.80, 742,232.70 and 214,885.80 is: 322,328.70
Step by Step Solution
- Step 1: Write the proportion equation
494,821.80 : 742,232.70 = 214,885.80 : x - Step 2: Convert to fraction form
494,821.80/742,232.70 = 214,885.80/x - Step 3: Cross multiply
494,821.80x = 742,232.70 × 214,885.80 - Step 4: Simplify right side
494,821.80x = 159,495,267,525.66 - Step 5: Solve for x
x = 159,495,267,525.66/494,821.80 - Step 6: Final answer
x = 322,328.70
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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.