Finding the Fourth Proportional to 1,138,460.21, 1,707,986.06 and 339,741.75
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Solution
The fourth proportional to 1,138,460.21, 1,707,986.06 and 339,741.75 is: 509,700.88
Step by Step Solution
- Step 1: Write the proportion equation
1,138,460.21 : 1,707,986.06 = 339,741.75 : x - Step 2: Convert to fraction form
1,138,460.21/1,707,986.06 = 339,741.75/x - Step 3: Cross multiply
1,138,460.21x = 1,707,986.06 × 339,741.75 - Step 4: Simplify right side
1,138,460.21x = 580,274,171,301.30 - Step 5: Solve for x
x = 580,274,171,301.30/1,138,460.21 - Step 6: Final answer
x = 509,700.88
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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.