Finding the Fourth Proportional to 923,933.55, 1,385,938.49 and 317,138.67
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Solution
The fourth proportional to 923,933.55, 1,385,938.49 and 317,138.67 is: 475,721.10
Step by Step Solution
- Step 1: Write the proportion equation
923,933.55 : 1,385,938.49 = 317,138.67 : x - Step 2: Convert to fraction form
923,933.55/1,385,938.49 = 317,138.67/x - Step 3: Cross multiply
923,933.55x = 1,385,938.49 × 317,138.67 - Step 4: Simplify right side
923,933.55x = 439,534,680,905.02 - Step 5: Solve for x
x = 439,534,680,905.02/923,933.55 - Step 6: Final answer
x = 475,721.10
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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.