Finding the Fourth Proportional to 409,414.20, 614,121.30 and 249,325.80
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Solution
The fourth proportional to 409,414.20, 614,121.30 and 249,325.80 is: 373,988.70
Step by Step Solution
- Step 1: Write the proportion equation
409,414.20 : 614,121.30 = 249,325.80 : x - Step 2: Convert to fraction form
409,414.20/614,121.30 = 249,325.80/x - Step 3: Cross multiply
409,414.20x = 614,121.30 × 249,325.80 - Step 4: Simplify right side
409,414.20x = 153,116,284,419.54 - Step 5: Solve for x
x = 153,116,284,419.54/409,414.20 - Step 6: Final answer
x = 373,988.70
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1.5x scale
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.