Finding the Fourth Proportional to 919,042.15, 1,268,090.44 and 536,995.09
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Solution
The fourth proportional to 919,042.15, 1,268,090.44 and 536,995.09 is: 740,943.54
Step by Step Solution
- Step 1: Write the proportion equation
919,042.15 : 1,268,090.44 = 536,995.09 : x - Step 2: Convert to fraction form
919,042.15/1,268,090.44 = 536,995.09/x - Step 3: Cross multiply
919,042.15x = 1,268,090.44 × 536,995.09 - Step 4: Simplify right side
919,042.15x = 680,958,339,955.94 - Step 5: Solve for x
x = 680,958,339,955.94/919,042.15 - Step 6: Final answer
x = 740,943.54
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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.