Finding the Fourth Proportional to 890,680.07, 1,229,138.49 and 488,272.07
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Solution
The fourth proportional to 890,680.07, 1,229,138.49 and 488,272.07 is: 673,815.45
Step by Step Solution
- Step 1: Write the proportion equation
890,680.07 : 1,229,138.49 = 488,272.07 : x - Step 2: Convert to fraction form
890,680.07/1,229,138.49 = 488,272.07/x - Step 3: Cross multiply
890,680.07x = 1,229,138.49 × 488,272.07 - Step 4: Simplify right side
890,680.07x = 600,153,988,683.28 - Step 5: Solve for x
x = 600,153,988,683.28/890,680.07 - Step 6: Final answer
x = 673,815.45
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1.5x scale
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.