Finding the Fourth Proportional to 919,187.29, 1,268,555.07 and 511,365.96
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Solution
The fourth proportional to 919,187.29, 1,268,555.07 and 511,365.96 is: 705,727.65
Step by Step Solution
- Step 1: Write the proportion equation
919,187.29 : 1,268,555.07 = 511,365.96 : x - Step 2: Convert to fraction form
919,187.29/1,268,555.07 = 511,365.96/x - Step 3: Cross multiply
919,187.29x = 1,268,555.07 × 511,365.96 - Step 4: Simplify right side
919,187.29x = 648,695,883,101.04 - Step 5: Solve for x
x = 648,695,883,101.04/919,187.29 - Step 6: Final answer
x = 705,727.65
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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.