Finding the Fourth Proportional to 526,355.12, 789,525.30 and 126,992.48
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Solution
The fourth proportional to 526,355.12, 789,525.30 and 126,992.48 is: 190,486.94
Step by Step Solution
- Step 1: Write the proportion equation
526,355.12 : 789,525.30 = 126,992.48 : x - Step 2: Convert to fraction form
526,355.12/789,525.30 = 126,992.48/x - Step 3: Cross multiply
526,355.12x = 789,525.30 × 126,992.48 - Step 4: Simplify right side
526,355.12x = 100,263,775,869.74 - Step 5: Solve for x
x = 100,263,775,869.74/526,355.12 - Step 6: Final answer
x = 190,486.94
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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.