Finding the Fourth Proportional to 855,762.51, 1,283,846.19 and 279,382.71
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Solution
The fourth proportional to 855,762.51, 1,283,846.19 and 279,382.71 is: 419,140.15
Step by Step Solution
- Step 1: Write the proportion equation
855,762.51 : 1,283,846.19 = 279,382.71 : x - Step 2: Convert to fraction form
855,762.51/1,283,846.19 = 279,382.71/x - Step 3: Cross multiply
855,762.51x = 1,283,846.19 × 279,382.71 - Step 4: Simplify right side
855,762.51x = 358,684,427,785.38 - Step 5: Solve for x
x = 358,684,427,785.38/855,762.51 - Step 6: Final answer
x = 419,140.15
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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.