Finding the Fourth Proportional to 743,403.12, 1,114,709.40 and 294,105.84
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Solution
The fourth proportional to 743,403.12, 1,114,709.40 and 294,105.84 is: 441,002.38
Step by Step Solution
- Step 1: Write the proportion equation
743,403.12 : 1,114,709.40 = 294,105.84 : x - Step 2: Convert to fraction form
743,403.12/1,114,709.40 = 294,105.84/x - Step 3: Cross multiply
743,403.12x = 1,114,709.40 × 294,105.84 - Step 4: Simplify right side
743,403.12x = 327,842,544,442.90 - Step 5: Solve for x
x = 327,842,544,442.90/743,403.12 - Step 6: Final answer
x = 441,002.38
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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.