Finding the Fourth Proportional to 1,100,070.72, 1,518,167.70 and 616,636.08
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Solution
The fourth proportional to 1,100,070.72, 1,518,167.70 and 616,636.08 is: 850,997.09
Step by Step Solution
- Step 1: Write the proportion equation
1,100,070.72 : 1,518,167.70 = 616,636.08 : x - Step 2: Convert to fraction form
1,100,070.72/1,518,167.70 = 616,636.08/x - Step 3: Cross multiply
1,100,070.72x = 1,518,167.70 × 616,636.08 - Step 4: Simplify right side
1,100,070.72x = 936,156,979,310.62 - Step 5: Solve for x
x = 936,156,979,310.62/1,100,070.72 - Step 6: Final answer
x = 850,997.09
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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.