Finding the Fourth Proportional to 861,976.08, 1,189,450.80 and 499,284
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Solution
The fourth proportional to 861,976.08, 1,189,450.80 and 499,284 is: 688,967.79
Step by Step Solution
- Step 1: Write the proportion equation
861,976.08 : 1,189,450.80 = 499,284 : x - Step 2: Convert to fraction form
861,976.08/1,189,450.80 = 499,284/x - Step 3: Cross multiply
861,976.08x = 1,189,450.80 × 499,284 - Step 4: Simplify right side
861,976.08x = 593,873,753,227.20 - Step 5: Solve for x
x = 593,873,753,227.20/861,976.08 - Step 6: Final answer
x = 688,967.79
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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.