Finding the Fourth Proportional to 808,213.20, 1,212,319.80 and 493,285.20
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Solution
The fourth proportional to 808,213.20, 1,212,319.80 and 493,285.20 is: 739,927.80
Step by Step Solution
- Step 1: Write the proportion equation
808,213.20 : 1,212,319.80 = 493,285.20 : x - Step 2: Convert to fraction form
808,213.20/1,212,319.80 = 493,285.20/x - Step 3: Cross multiply
808,213.20x = 1,212,319.80 × 493,285.20 - Step 4: Simplify right side
808,213.20x = 598,019,415,006.96 - Step 5: Solve for x
x = 598,019,415,006.96/808,213.20 - Step 6: Final answer
x = 739,927.80
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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.