Finding the Fourth Proportional to 689,487.57, 1,034,231.36 and 216,211.05
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Solution
The fourth proportional to 689,487.57, 1,034,231.36 and 216,211.05 is: 324,316.58
Step by Step Solution
- Step 1: Write the proportion equation
689,487.57 : 1,034,231.36 = 216,211.05 : x - Step 2: Convert to fraction form
689,487.57/1,034,231.36 = 216,211.05/x - Step 3: Cross multiply
689,487.57x = 1,034,231.36 × 216,211.05 - Step 4: Simplify right side
689,487.57x = 223,612,247,207.47 - Step 5: Solve for x
x = 223,612,247,207.47/689,487.57 - Step 6: Final answer
x = 324,316.58
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1.5x scale
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.