Finding the Fourth Proportional to 879,546.13, 1,213,827.33 and 492,353.98
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Solution
The fourth proportional to 879,546.13, 1,213,827.33 and 492,353.98 is: 679,478.54
Step by Step Solution
- Step 1: Write the proportion equation
879,546.13 : 1,213,827.33 = 492,353.98 : x - Step 2: Convert to fraction form
879,546.13/1,213,827.33 = 492,353.98/x - Step 3: Cross multiply
879,546.13x = 1,213,827.33 × 492,353.98 - Step 4: Simplify right side
879,546.13x = 597,632,716,958.27 - Step 5: Solve for x
x = 597,632,716,958.27/879,546.13 - Step 6: Final answer
x = 679,478.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.