Finding the Fourth Proportional to 1,138,566.42, 1,707,791.31 and 339,854.58
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Solution
The fourth proportional to 1,138,566.42, 1,707,791.31 and 339,854.58 is: 509,764.46
Step by Step Solution
- Step 1: Write the proportion equation
1,138,566.42 : 1,707,791.31 = 339,854.58 : x - Step 2: Convert to fraction form
1,138,566.42/1,707,791.31 = 339,854.58/x - Step 3: Cross multiply
1,138,566.42x = 1,707,791.31 × 339,854.58 - Step 4: Simplify right side
1,138,566.42x = 580,400,698,387.70 - Step 5: Solve for x
x = 580,400,698,387.70/1,138,566.42 - Step 6: Final answer
x = 509,764.46
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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.