Finding the Fourth Proportional to 786,406.68, 1,179,610.74 and 195,430.68
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Solution
The fourth proportional to 786,406.68, 1,179,610.74 and 195,430.68 is: 293,146.20
Step by Step Solution
- Step 1: Write the proportion equation
786,406.68 : 1,179,610.74 = 195,430.68 : x - Step 2: Convert to fraction form
786,406.68/1,179,610.74 = 195,430.68/x - Step 3: Cross multiply
786,406.68x = 1,179,610.74 × 195,430.68 - Step 4: Simplify right side
786,406.68x = 230,532,129,053.50 - Step 5: Solve for x
x = 230,532,129,053.50/786,406.68 - Step 6: Final answer
x = 293,146.20
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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.