Finding the Fourth Proportional to 689,742.68, 1,034,657.74 and 216,446.72
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Solution
The fourth proportional to 689,742.68, 1,034,657.74 and 216,446.72 is: 324,683.80
Step by Step Solution
- Step 1: Write the proportion equation
689,742.68 : 1,034,657.74 = 216,446.72 : x - Step 2: Convert to fraction form
689,742.68/1,034,657.74 = 216,446.72/x - Step 3: Cross multiply
689,742.68x = 1,034,657.74 × 216,446.72 - Step 4: Simplify right side
689,742.68x = 223,948,274,145.61 - Step 5: Solve for x
x = 223,948,274,145.61/689,742.68 - Step 6: Final answer
x = 324,683.80
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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.