Finding the Fourth Proportional to 1,297,201.12, 1,790,001.75 and 753,230.87
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Solution
The fourth proportional to 1,297,201.12, 1,790,001.75 and 753,230.87 is: 1,039,379.75
Step by Step Solution
- Step 1: Write the proportion equation
1,297,201.12 : 1,790,001.75 = 753,230.87 : x - Step 2: Convert to fraction form
1,297,201.12/1,790,001.75 = 753,230.87/x - Step 3: Cross multiply
1,297,201.12x = 1,790,001.75 × 753,230.87 - Step 4: Simplify right side
1,297,201.12x = 1,348,284,575,454.02 - Step 5: Solve for x
x = 1,348,284,575,454.02/1,297,201.12 - Step 6: Final answer
x = 1,039,379.75
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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.