Finding the Fourth Proportional to 919,135.24, 1,268,365.80 and 531,889.24
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Solution
The fourth proportional to 919,135.24, 1,268,365.80 and 531,889.24 is: 733,983.52
Step by Step Solution
- Step 1: Write the proportion equation
919,135.24 : 1,268,365.80 = 531,889.24 : x - Step 2: Convert to fraction form
919,135.24/1,268,365.80 = 531,889.24/x - Step 3: Cross multiply
919,135.24x = 1,268,365.80 × 531,889.24 - Step 4: Simplify right side
919,135.24x = 674,630,121,403.99 - Step 5: Solve for x
x = 674,630,121,403.99/919,135.24 - Step 6: Final answer
x = 733,983.52
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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.