Finding the Fourth Proportional to 625,453.05, 863,128.23 and 338,973.06
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Solution
The fourth proportional to 625,453.05, 863,128.23 and 338,973.06 is: 467,784.46
Step by Step Solution
- Step 1: Write the proportion equation
625,453.05 : 863,128.23 = 338,973.06 : x - Step 2: Convert to fraction form
625,453.05/863,128.23 = 338,973.06/x - Step 3: Cross multiply
625,453.05x = 863,128.23 × 338,973.06 - Step 4: Simplify right side
625,453.05x = 292,577,217,295.48 - Step 5: Solve for x
x = 292,577,217,295.48/625,453.05 - Step 6: Final answer
x = 467,784.46
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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.