Finding the Fourth Proportional to 1,185,214.36, 1,635,600.12 and 641,350.12
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Solution
The fourth proportional to 1,185,214.36, 1,635,600.12 and 641,350.12 is: 885,065.49
Step by Step Solution
- Step 1: Write the proportion equation
1,185,214.36 : 1,635,600.12 = 641,350.12 : x - Step 2: Convert to fraction form
1,185,214.36/1,635,600.12 = 641,350.12/x - Step 3: Cross multiply
1,185,214.36x = 1,635,600.12 × 641,350.12 - Step 4: Simplify right side
1,185,214.36x = 1,048,992,333,234.01 - Step 5: Solve for x
x = 1,048,992,333,234.01/1,185,214.36 - Step 6: Final answer
x = 885,065.49
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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.