Finding the Fourth Proportional to 689,467.88, 1,034,201.86 and 216,191.36
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Solution
The fourth proportional to 689,467.88, 1,034,201.86 and 216,191.36 is: 324,287.05
Step by Step Solution
- Step 1: Write the proportion equation
689,467.88 : 1,034,201.86 = 216,191.36 : x - Step 2: Convert to fraction form
689,467.88/1,034,201.86 = 216,191.36/x - Step 3: Cross multiply
689,467.88x = 1,034,201.86 × 216,191.36 - Step 4: Simplify right side
689,467.88x = 223,585,508,672.96 - Step 5: Solve for x
x = 223,585,508,672.96/689,467.88 - Step 6: Final answer
x = 324,287.05
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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.