Finding the Fourth Proportional to 919,739.37, 1,268,154.72 and 629,490.99
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Solution
The fourth proportional to 919,739.37, 1,268,154.72 and 629,490.99 is: 867,954.55
Step by Step Solution
- Step 1: Write the proportion equation
919,739.37 : 1,268,154.72 = 629,490.99 : x - Step 2: Convert to fraction form
919,739.37/1,268,154.72 = 629,490.99/x - Step 3: Cross multiply
919,739.37x = 1,268,154.72 × 629,490.99 - Step 4: Simplify right side
919,739.37x = 798,291,970,165.97 - Step 5: Solve for x
x = 798,291,970,165.97/919,739.37 - Step 6: Final answer
x = 867,954.55
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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.