Finding the Fourth Proportional to 992,972.16, 1,489,440.96 and 283,006.08
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Solution
The fourth proportional to 992,972.16, 1,489,440.96 and 283,006.08 is: 424,504.20
Step by Step Solution
- Step 1: Write the proportion equation
992,972.16 : 1,489,440.96 = 283,006.08 : x - Step 2: Convert to fraction form
992,972.16/1,489,440.96 = 283,006.08/x - Step 3: Cross multiply
992,972.16x = 1,489,440.96 × 283,006.08 - Step 4: Simplify right side
992,972.16x = 421,520,847,481.04 - Step 5: Solve for x
x = 421,520,847,481.04/992,972.16 - Step 6: Final answer
x = 424,504.20
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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.