Finding the Fourth Proportional to 750,720.09, 1,126,080.14 and 189,754.59
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Solution
The fourth proportional to 750,720.09, 1,126,080.14 and 189,754.59 is: 284,631.89
Step by Step Solution
- Step 1: Write the proportion equation
750,720.09 : 1,126,080.14 = 189,754.59 : x - Step 2: Convert to fraction form
750,720.09/1,126,080.14 = 189,754.59/x - Step 3: Cross multiply
750,720.09x = 1,126,080.14 × 189,754.59 - Step 4: Simplify right side
750,720.09x = 213,678,874,324.07 - Step 5: Solve for x
x = 213,678,874,324.07/750,720.09 - Step 6: Final answer
x = 284,631.89
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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.