Finding the Fourth Proportional to 685,986.56, 1,029,033.14 and 206,176.98
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Solution
The fourth proportional to 685,986.56, 1,029,033.14 and 206,176.98 is: 309,281.49
Step by Step Solution
- Step 1: Write the proportion equation
685,986.56 : 1,029,033.14 = 206,176.98 : x - Step 2: Convert to fraction form
685,986.56/1,029,033.14 = 206,176.98/x - Step 3: Cross multiply
685,986.56x = 1,029,033.14 × 206,176.98 - Step 4: Simplify right side
685,986.56x = 212,162,944,094.23 - Step 5: Solve for x
x = 212,162,944,094.23/685,986.56 - Step 6: Final answer
x = 309,281.49
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1.5x scale
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.