Finding the Fourth Proportional to 1,679,829.12, 2,519,745.57 and 417,656.88
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Solution
The fourth proportional to 1,679,829.12, 2,519,745.57 and 417,656.88 is: 626,485.79
Step by Step Solution
- Step 1: Write the proportion equation
1,679,829.12 : 2,519,745.57 = 417,656.88 : x - Step 2: Convert to fraction form
1,679,829.12/2,519,745.57 = 417,656.88/x - Step 3: Cross multiply
1,679,829.12x = 2,519,745.57 × 417,656.88 - Step 4: Simplify right side
1,679,829.12x = 1,052,389,073,160.02 - Step 5: Solve for x
x = 1,052,389,073,160.02/1,679,829.12 - Step 6: Final answer
x = 626,485.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.