Finding the Fourth Proportional to 348,979.20, 523,468.80 and 313,549.80
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Solution
The fourth proportional to 348,979.20, 523,468.80 and 313,549.80 is: 470,324.70
Step by Step Solution
- Step 1: Write the proportion equation
348,979.20 : 523,468.80 = 313,549.80 : x - Step 2: Convert to fraction form
348,979.20/523,468.80 = 313,549.80/x - Step 3: Cross multiply
348,979.20x = 523,468.80 × 313,549.80 - Step 4: Simplify right side
348,979.20x = 164,133,537,546.24 - Step 5: Solve for x
x = 164,133,537,546.24/348,979.20 - Step 6: Final answer
x = 470,324.70
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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.