Finding the Fourth Proportional to 779,944.80, 1,169,917.20 and 580,879.20
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Solution
The fourth proportional to 779,944.80, 1,169,917.20 and 580,879.20 is: 871,318.80
Step by Step Solution
- Step 1: Write the proportion equation
779,944.80 : 1,169,917.20 = 580,879.20 : x - Step 2: Convert to fraction form
779,944.80/1,169,917.20 = 580,879.20/x - Step 3: Cross multiply
779,944.80x = 1,169,917.20 × 580,879.20 - Step 4: Simplify right side
779,944.80x = 679,580,567,202.24 - Step 5: Solve for x
x = 679,580,567,202.24/779,944.80 - Step 6: Final answer
x = 871,318.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.