Finding the Fourth Proportional to 434,611.20, 651,916.80 and 410,116.80
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Solution
The fourth proportional to 434,611.20, 651,916.80 and 410,116.80 is: 615,175.20
Step by Step Solution
- Step 1: Write the proportion equation
434,611.20 : 651,916.80 = 410,116.80 : x - Step 2: Convert to fraction form
434,611.20/651,916.80 = 410,116.80/x - Step 3: Cross multiply
434,611.20x = 651,916.80 × 410,116.80 - Step 4: Simplify right side
434,611.20x = 267,362,031,882.24 - Step 5: Solve for x
x = 267,362,031,882.24/434,611.20 - Step 6: Final answer
x = 615,175.20
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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.