Finding the Fourth Proportional to 1,567,420.14, 2,162,121.14 and 985,720.62
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Solution
The fourth proportional to 1,567,420.14, 2,162,121.14 and 985,720.62 is: 1,359,716.73
Step by Step Solution
- Step 1: Write the proportion equation
1,567,420.14 : 2,162,121.14 = 985,720.62 : x - Step 2: Convert to fraction form
1,567,420.14/2,162,121.14 = 985,720.62/x - Step 3: Cross multiply
1,567,420.14x = 2,162,121.14 × 985,720.62 - Step 4: Simplify right side
1,567,420.14x = 2,131,247,390,635.91 - Step 5: Solve for x
x = 2,131,247,390,635.91/1,567,420.14 - Step 6: Final answer
x = 1,359,716.73
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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.