Finding the Fourth Proportional to 1,191,475.12, 1,787,329.62 and 338,586.12
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Solution
The fourth proportional to 1,191,475.12, 1,787,329.62 and 338,586.12 is: 507,912.41
Step by Step Solution
- Step 1: Write the proportion equation
1,191,475.12 : 1,787,329.62 = 338,586.12 : x - Step 2: Convert to fraction form
1,191,475.12/1,787,329.62 = 338,586.12/x - Step 3: Cross multiply
1,191,475.12x = 1,787,329.62 × 338,586.12 - Step 4: Simplify right side
1,191,475.12x = 605,165,001,196.87 - Step 5: Solve for x
x = 605,165,001,196.87/1,191,475.12 - Step 6: Final answer
x = 507,912.41
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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.