Finding the Fourth Proportional to 410,861.95, 615,286.87 and 339,347.05
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Solution
The fourth proportional to 410,861.95, 615,286.87 and 339,347.05 is: 508,189.63
Step by Step Solution
- Step 1: Write the proportion equation
410,861.95 : 615,286.87 = 339,347.05 : x - Step 2: Convert to fraction form
410,861.95/615,286.87 = 339,347.05/x - Step 3: Cross multiply
410,861.95x = 615,286.87 × 339,347.05 - Step 4: Simplify right side
410,861.95x = 208,795,781,851.65 - Step 5: Solve for x
x = 208,795,781,851.65/410,861.95 - Step 6: Final answer
x = 508,189.63
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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.