Finding the Fourth Proportional to 1,326,249.55, 1,989,762.45 and 427,673.08
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Solution
The fourth proportional to 1,326,249.55, 1,989,762.45 and 427,673.08 is: 641,634.78
Step by Step Solution
- Step 1: Write the proportion equation
1,326,249.55 : 1,989,762.45 = 427,673.08 : x - Step 2: Convert to fraction form
1,326,249.55/1,989,762.45 = 427,673.08/x - Step 3: Cross multiply
1,326,249.55x = 1,989,762.45 × 427,673.08 - Step 4: Simplify right side
1,326,249.55x = 850,967,835,459.85 - Step 5: Solve for x
x = 850,967,835,459.85/1,326,249.55 - Step 6: Final answer
x = 641,634.78
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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.