Finding the Fourth Proportional to 1,255,034.12, 1,731,911.14 and 711,345.62
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Solution
The fourth proportional to 1,255,034.12, 1,731,911.14 and 711,345.62 is: 981,636.58
Step by Step Solution
- Step 1: Write the proportion equation
1,255,034.12 : 1,731,911.14 = 711,345.62 : x - Step 2: Convert to fraction form
1,255,034.12/1,731,911.14 = 711,345.62/x - Step 3: Cross multiply
1,255,034.12x = 1,731,911.14 × 711,345.62 - Step 4: Simplify right side
1,255,034.12x = 1,231,987,403,668.21 - Step 5: Solve for x
x = 1,231,987,403,668.21/1,255,034.12 - Step 6: Final answer
x = 981,636.58
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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.