Finding the Fourth Proportional to 675,171.24, 931,850.88 and 388,857.09
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Solution
The fourth proportional to 675,171.24, 931,850.88 and 388,857.09 is: 536,688.77
Step by Step Solution
- Step 1: Write the proportion equation
675,171.24 : 931,850.88 = 388,857.09 : x - Step 2: Convert to fraction form
675,171.24/931,850.88 = 388,857.09/x - Step 3: Cross multiply
675,171.24x = 931,850.88 × 388,857.09 - Step 4: Simplify right side
675,171.24x = 362,356,821,510.74 - Step 5: Solve for x
x = 362,356,821,510.74/675,171.24 - Step 6: Final answer
x = 536,688.77
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1.5x scale
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.