Finding the Fourth Proportional to 827,149.86, 1,235,121.66 and 656,758.26
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Solution
The fourth proportional to 827,149.86, 1,235,121.66 and 656,758.26 is: 980,688.50
Step by Step Solution
- Step 1: Write the proportion equation
827,149.86 : 1,235,121.66 = 656,758.26 : x - Step 2: Convert to fraction form
827,149.86/1,235,121.66 = 656,758.26/x - Step 3: Cross multiply
827,149.86x = 1,235,121.66 × 656,758.26 - Step 4: Simplify right side
827,149.86x = 811,176,352,309.91 - Step 5: Solve for x
x = 811,176,352,309.91/827,149.86 - Step 6: Final answer
x = 980,688.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.