Finding the Fourth Proportional to 1,247,919.21, 1,722,128.85 and 704,170.26
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Solution
The fourth proportional to 1,247,919.21, 1,722,128.85 and 704,170.26 is: 971,755.15
Step by Step Solution
- Step 1: Write the proportion equation
1,247,919.21 : 1,722,128.85 = 704,170.26 : x - Step 2: Convert to fraction form
1,247,919.21/1,722,128.85 = 704,170.26/x - Step 3: Cross multiply
1,247,919.21x = 1,722,128.85 × 704,170.26 - Step 4: Simplify right side
1,247,919.21x = 1,212,671,920,058.00 - Step 5: Solve for x
x = 1,212,671,920,058.00/1,247,919.21 - Step 6: Final answer
x = 971,755.15
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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.