Finding the Fourth Proportional to 625,198.95, 862,775.40 and 338,719.05
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Solution
The fourth proportional to 625,198.95, 862,775.40 and 338,719.05 is: 467,432.75
Step by Step Solution
- Step 1: Write the proportion equation
625,198.95 : 862,775.40 = 338,719.05 : x - Step 2: Convert to fraction form
625,198.95/862,775.40 = 338,719.05/x - Step 3: Cross multiply
625,198.95x = 862,775.40 × 338,719.05 - Step 4: Simplify right side
625,198.95x = 292,238,459,537.49 - Step 5: Solve for x
x = 292,238,459,537.49/625,198.95 - Step 6: Final answer
x = 467,432.75
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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.