Finding the Fourth Proportional to 485,532.63, 670,099.91 and 278,882.19
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Solution
The fourth proportional to 485,532.63, 670,099.91 and 278,882.19 is: 384,894.69
Step by Step Solution
- Step 1: Write the proportion equation
485,532.63 : 670,099.91 = 278,882.19 : x - Step 2: Convert to fraction form
485,532.63/670,099.91 = 278,882.19/x - Step 3: Cross multiply
485,532.63x = 670,099.91 × 278,882.19 - Step 4: Simplify right side
485,532.63x = 186,878,929,025.19 - Step 5: Solve for x
x = 186,878,929,025.19/485,532.63 - Step 6: Final answer
x = 384,894.69
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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.