Finding the Fourth Proportional to 1,560,679.12, 2,341,174.62 and 423,459.40
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Solution
The fourth proportional to 1,560,679.12, 2,341,174.62 and 423,459.40 is: 635,231.41
Step by Step Solution
- Step 1: Write the proportion equation
1,560,679.12 : 2,341,174.62 = 423,459.40 : x - Step 2: Convert to fraction form
1,560,679.12/2,341,174.62 = 423,459.40/x - Step 3: Cross multiply
1,560,679.12x = 2,341,174.62 × 423,459.40 - Step 4: Simplify right side
1,560,679.12x = 991,392,399,880.43 - Step 5: Solve for x
x = 991,392,399,880.43/1,560,679.12 - Step 6: Final answer
x = 635,231.41
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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.