Finding the Fourth Proportional to 680,846.24, 1,021,416.16 and 339,475.80
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Solution
The fourth proportional to 680,846.24, 1,021,416.16 and 339,475.80 is: 509,286.90
Step by Step Solution
- Step 1: Write the proportion equation
680,846.24 : 1,021,416.16 = 339,475.80 : x - Step 2: Convert to fraction form
680,846.24/1,021,416.16 = 339,475.80/x - Step 3: Cross multiply
680,846.24x = 1,021,416.16 × 339,475.80 - Step 4: Simplify right side
680,846.24x = 346,746,068,048.93 - Step 5: Solve for x
x = 346,746,068,048.93/680,846.24 - Step 6: Final answer
x = 509,286.90
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1.5x scale
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.