Finding the Fourth Proportional to 685,987.56, 1,029,034.64 and 206,177.98
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Solution
The fourth proportional to 685,987.56, 1,029,034.64 and 206,177.98 is: 309,282.99
Step by Step Solution
- Step 1: Write the proportion equation
685,987.56 : 1,029,034.64 = 206,177.98 : x - Step 2: Convert to fraction form
685,987.56/1,029,034.64 = 206,177.98/x - Step 3: Cross multiply
685,987.56x = 1,029,034.64 × 206,177.98 - Step 4: Simplify right side
685,987.56x = 212,164,283,425.23 - Step 5: Solve for x
x = 212,164,283,425.23/685,987.56 - Step 6: Final answer
x = 309,282.99
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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.