Finding the Fourth Proportional to 453,745.40, 680,618.10 and 312,027.80
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Solution
The fourth proportional to 453,745.40, 680,618.10 and 312,027.80 is: 468,041.70
Step by Step Solution
- Step 1: Write the proportion equation
453,745.40 : 680,618.10 = 312,027.80 : x - Step 2: Convert to fraction form
453,745.40/680,618.10 = 312,027.80/x - Step 3: Cross multiply
453,745.40x = 680,618.10 × 312,027.80 - Step 4: Simplify right side
453,745.40x = 212,371,768,383.18 - Step 5: Solve for x
x = 212,371,768,383.18/453,745.40 - Step 6: Final answer
x = 468,041.70
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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.