Finding the Fourth Proportional to 453,431.70, 680,147.55 and 383,447.70
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Solution
The fourth proportional to 453,431.70, 680,147.55 and 383,447.70 is: 575,171.55
Step by Step Solution
- Step 1: Write the proportion equation
453,431.70 : 680,147.55 = 383,447.70 : x - Step 2: Convert to fraction form
453,431.70/680,147.55 = 383,447.70/x - Step 3: Cross multiply
453,431.70x = 680,147.55 × 383,447.70 - Step 4: Simplify right side
453,431.70x = 260,801,013,708.14 - Step 5: Solve for x
x = 260,801,013,708.14/453,431.70 - Step 6: Final answer
x = 575,171.55
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Similar ratio
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1.5x scale
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.