Finding the Fourth Proportional to 1,219,021.98, 1,682,158.77 and 702,408.84
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Solution
The fourth proportional to 1,219,021.98, 1,682,158.77 and 702,408.84 is: 969,271.44
Step by Step Solution
- Step 1: Write the proportion equation
1,219,021.98 : 1,682,158.77 = 702,408.84 : x - Step 2: Convert to fraction form
1,219,021.98/1,682,158.77 = 702,408.84/x - Step 3: Cross multiply
1,219,021.98x = 1,682,158.77 × 702,408.84 - Step 4: Simplify right side
1,219,021.98x = 1,181,563,190,331.53 - Step 5: Solve for x
x = 1,181,563,190,331.53/1,219,021.98 - Step 6: Final answer
x = 969,271.44
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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.