Finding the Fourth Proportional to 1,205,590.96, 1,663,709.68 and 661,736.00
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Solution
The fourth proportional to 1,205,590.96, 1,663,709.68 and 661,736.00 is: 913,192.48
Step by Step Solution
- Step 1: Write the proportion equation
1,205,590.96 : 1,663,709.68 = 661,736.00 : x - Step 2: Convert to fraction form
1,205,590.96/1,663,709.68 = 661,736.00/x - Step 3: Cross multiply
1,205,590.96x = 1,663,709.68 × 661,736.00 - Step 4: Simplify right side
1,205,590.96x = 1,100,936,592,963.75 - Step 5: Solve for x
x = 1,100,936,592,963.75/1,205,590.96 - Step 6: Final answer
x = 913,192.48
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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.