Finding the Fourth Proportional to 621,379.70, 931,775.04 and 216,430.68
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Solution
The fourth proportional to 621,379.70, 931,775.04 and 216,430.68 is: 324,543.44
Step by Step Solution
- Step 1: Write the proportion equation
621,379.70 : 931,775.04 = 216,430.68 : x - Step 2: Convert to fraction form
621,379.70/931,775.04 = 216,430.68/x - Step 3: Cross multiply
621,379.70x = 931,775.04 × 216,430.68 - Step 4: Simplify right side
621,379.70x = 201,664,705,514.23 - Step 5: Solve for x
x = 201,664,705,514.23/621,379.70 - Step 6: Final answer
x = 324,543.44
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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.