Finding the Fourth Proportional to 1,220,635.10, 1,684,408.97 and 676,739.14
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Solution
The fourth proportional to 1,220,635.10, 1,684,408.97 and 676,739.14 is: 933,862.61
Step by Step Solution
- Step 1: Write the proportion equation
1,220,635.10 : 1,684,408.97 = 676,739.14 : x - Step 2: Convert to fraction form
1,220,635.10/1,684,408.97 = 676,739.14/x - Step 3: Cross multiply
1,220,635.10x = 1,684,408.97 × 676,739.14 - Step 4: Simplify right side
1,220,635.10x = 1,139,905,477,766.09 - Step 5: Solve for x
x = 1,139,905,477,766.09/1,220,635.10 - Step 6: Final answer
x = 933,862.61
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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.