Finding the Fourth Proportional to 741,631.20, 1,112,446.80 and 368,383.20
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Solution
The fourth proportional to 741,631.20, 1,112,446.80 and 368,383.20 is: 552,574.80
Step by Step Solution
- Step 1: Write the proportion equation
741,631.20 : 1,112,446.80 = 368,383.20 : x - Step 2: Convert to fraction form
741,631.20/1,112,446.80 = 368,383.20/x - Step 3: Cross multiply
741,631.20x = 1,112,446.80 × 368,383.20 - Step 4: Simplify right side
741,631.20x = 409,806,712,013.76 - Step 5: Solve for x
x = 409,806,712,013.76/741,631.20 - Step 6: Final answer
x = 552,574.80
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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.