Finding the Fourth Proportional to 812,184.62, 1,120,823.63 and 449,614.53
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Solution
The fourth proportional to 812,184.62, 1,120,823.63 and 449,614.53 is: 620,472.95
Step by Step Solution
- Step 1: Write the proportion equation
812,184.62 : 1,120,823.63 = 449,614.53 : x - Step 2: Convert to fraction form
812,184.62/1,120,823.63 = 449,614.53/x - Step 3: Cross multiply
812,184.62x = 1,120,823.63 × 449,614.53 - Step 4: Simplify right side
812,184.62x = 503,938,589,615.34 - Step 5: Solve for x
x = 503,938,589,615.34/812,184.62 - Step 6: Final answer
x = 620,472.95
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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.