Finding the Fourth Proportional to 1,247,999.12, 1,722,239.20 and 704,250.48
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Solution
The fourth proportional to 1,247,999.12, 1,722,239.20 and 704,250.48 is: 971,865.90
Step by Step Solution
- Step 1: Write the proportion equation
1,247,999.12 : 1,722,239.20 = 704,250.48 : x - Step 2: Convert to fraction form
1,247,999.12/1,722,239.20 = 704,250.48/x - Step 3: Cross multiply
1,247,999.12x = 1,722,239.20 × 704,250.48 - Step 4: Simplify right side
1,247,999.12x = 1,212,887,783,274.82 - Step 5: Solve for x
x = 1,212,887,783,274.82/1,247,999.12 - Step 6: Final answer
x = 971,865.90
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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.