Finding the Fourth Proportional to 840,908.13, 1,261,563.08 and 272,289.83
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Solution
The fourth proportional to 840,908.13, 1,261,563.08 and 272,289.83 is: 408,499.78
Step by Step Solution
- Step 1: Write the proportion equation
840,908.13 : 1,261,563.08 = 272,289.83 : x - Step 2: Convert to fraction form
840,908.13/1,261,563.08 = 272,289.83/x - Step 3: Cross multiply
840,908.13x = 1,261,563.08 × 272,289.83 - Step 4: Simplify right side
840,908.13x = 343,510,788,918.21 - Step 5: Solve for x
x = 343,510,788,918.21/840,908.13 - Step 6: Final answer
x = 408,499.78
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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.