Finding the Fourth Proportional to 716,556.24, 1,074,661.20 and 210,979.62
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Solution
The fourth proportional to 716,556.24, 1,074,661.20 and 210,979.62 is: 316,418.45
Step by Step Solution
- Step 1: Write the proportion equation
716,556.24 : 1,074,661.20 = 210,979.62 : x - Step 2: Convert to fraction form
716,556.24/1,074,661.20 = 210,979.62/x - Step 3: Cross multiply
716,556.24x = 1,074,661.20 × 210,979.62 - Step 4: Simplify right side
716,556.24x = 226,731,611,604.74 - Step 5: Solve for x
x = 226,731,611,604.74/716,556.24 - Step 6: Final answer
x = 316,418.45
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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.