Finding the Fourth Proportional to 812,799.96, 1,121,614.58 and 450,202.66
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Solution
The fourth proportional to 812,799.96, 1,121,614.58 and 450,202.66 is: 621,252.33
Step by Step Solution
- Step 1: Write the proportion equation
812,799.96 : 1,121,614.58 = 450,202.66 : x - Step 2: Convert to fraction form
812,799.96/1,121,614.58 = 450,202.66/x - Step 3: Cross multiply
812,799.96x = 1,121,614.58 × 450,202.66 - Step 4: Simplify right side
812,799.96x = 504,953,867,410.78 - Step 5: Solve for x
x = 504,953,867,410.78/812,799.96 - Step 6: Final answer
x = 621,252.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.