Finding the Fourth Proportional to 980,678.37, 1,471,254.70 and 340,889.75
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Solution
The fourth proportional to 980,678.37, 1,471,254.70 and 340,889.75 is: 511,417.06
Step by Step Solution
- Step 1: Write the proportion equation
980,678.37 : 1,471,254.70 = 340,889.75 : x - Step 2: Convert to fraction form
980,678.37/1,471,254.70 = 340,889.75/x - Step 3: Cross multiply
980,678.37x = 1,471,254.70 × 340,889.75 - Step 4: Simplify right side
980,678.37x = 501,535,646,869.33 - Step 5: Solve for x
x = 501,535,646,869.33/980,678.37 - Step 6: Final answer
x = 511,417.06
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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.