Finding the Fourth Proportional to 939,812.13, 1,409,877.35 and 324,148.92
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Solution
The fourth proportional to 939,812.13, 1,409,877.35 and 324,148.92 is: 486,278.27
Step by Step Solution
- Step 1: Write the proportion equation
939,812.13 : 1,409,877.35 = 324,148.92 : x - Step 2: Convert to fraction form
939,812.13/1,409,877.35 = 324,148.92/x - Step 3: Cross multiply
939,812.13x = 1,409,877.35 × 324,148.92 - Step 4: Simplify right side
939,812.13x = 457,010,220,334.96 - Step 5: Solve for x
x = 457,010,220,334.96/939,812.13 - Step 6: Final answer
x = 486,278.27
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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.