Finding the Fourth Proportional to 639,600.09, 882,634.93 and 367,660.99
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Solution
The fourth proportional to 639,600.09, 882,634.93 and 367,660.99 is: 507,364.58
Step by Step Solution
- Step 1: Write the proportion equation
639,600.09 : 882,634.93 = 367,660.99 : x - Step 2: Convert to fraction form
639,600.09/882,634.93 = 367,660.99/x - Step 3: Cross multiply
639,600.09x = 882,634.93 × 367,660.99 - Step 4: Simplify right side
639,600.09x = 324,510,432,172.38 - Step 5: Solve for x
x = 324,510,432,172.38/639,600.09 - Step 6: Final answer
x = 507,364.58
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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.