Finding the Fourth Proportional to 408,885.36, 564,165.39 and 343,721.99
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Solution
The fourth proportional to 408,885.36, 564,165.39 and 343,721.99 is: 474,255.30
Step by Step Solution
- Step 1: Write the proportion equation
408,885.36 : 564,165.39 = 343,721.99 : x - Step 2: Convert to fraction form
408,885.36/564,165.39 = 343,721.99/x - Step 3: Cross multiply
408,885.36x = 564,165.39 × 343,721.99 - Step 4: Simplify right side
408,885.36x = 193,916,047,719.10 - Step 5: Solve for x
x = 193,916,047,719.10/408,885.36 - Step 6: Final answer
x = 474,255.30
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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.