Finding the Fourth Proportional to 549,379.08, 756,380.70 and 428,365.08
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Solution
The fourth proportional to 549,379.08, 756,380.70 and 428,365.08 is: 589,769.60
Step by Step Solution
- Step 1: Write the proportion equation
549,379.08 : 756,380.70 = 428,365.08 : x - Step 2: Convert to fraction form
549,379.08/756,380.70 = 428,365.08/x - Step 3: Cross multiply
549,379.08x = 756,380.70 × 428,365.08 - Step 4: Simplify right side
549,379.08x = 324,007,079,065.96 - Step 5: Solve for x
x = 324,007,079,065.96/549,379.08 - Step 6: Final answer
x = 589,769.60
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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.