Finding the Fourth Proportional to 686,324.72, 1,029,136.08 and 286,856.48
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Solution
The fourth proportional to 686,324.72, 1,029,136.08 and 286,856.48 is: 430,138.02
Step by Step Solution
- Step 1: Write the proportion equation
686,324.72 : 1,029,136.08 = 286,856.48 : x - Step 2: Convert to fraction form
686,324.72/1,029,136.08 = 286,856.48/x - Step 3: Cross multiply
686,324.72x = 1,029,136.08 × 286,856.48 - Step 4: Simplify right side
686,324.72x = 295,214,353,349.80 - Step 5: Solve for x
x = 295,214,353,349.80/686,324.72 - Step 6: Final answer
x = 430,138.02
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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.