Finding the Fourth Proportional to 1,320,319.56, 1,980,160.74 and 609,664.44
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Solution
The fourth proportional to 1,320,319.56, 1,980,160.74 and 609,664.44 is: 914,349.54
Step by Step Solution
- Step 1: Write the proportion equation
1,320,319.56 : 1,980,160.74 = 609,664.44 : x - Step 2: Convert to fraction form
1,320,319.56/1,980,160.74 = 609,664.44/x - Step 3: Cross multiply
1,320,319.56x = 1,980,160.74 × 609,664.44 - Step 4: Simplify right side
1,320,319.56x = 1,207,233,588,662.09 - Step 5: Solve for x
x = 1,207,233,588,662.09/1,320,319.56 - Step 6: Final answer
x = 914,349.54
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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.