Finding the Fourth Proportional to 470,193.53, 648,856.09 and 276,613.70
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Solution
The fourth proportional to 470,193.53, 648,856.09 and 276,613.70 is: 381,720.45
Step by Step Solution
- Step 1: Write the proportion equation
470,193.53 : 648,856.09 = 276,613.70 : x - Step 2: Convert to fraction form
470,193.53/648,856.09 = 276,613.70/x - Step 3: Cross multiply
470,193.53x = 648,856.09 × 276,613.70 - Step 4: Simplify right side
470,193.53x = 179,482,483,017.78 - Step 5: Solve for x
x = 179,482,483,017.78/470,193.53 - Step 6: Final answer
x = 381,720.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.