Finding the Fourth Proportional to 611,138.67, 843,358.68 and 339,190.62
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Solution
The fourth proportional to 611,138.67, 843,358.68 and 339,190.62 is: 468,076.02
Step by Step Solution
- Step 1: Write the proportion equation
611,138.67 : 843,358.68 = 339,190.62 : x - Step 2: Convert to fraction form
611,138.67/843,358.68 = 339,190.62/x - Step 3: Cross multiply
611,138.67x = 843,358.68 × 339,190.62 - Step 4: Simplify right side
611,138.67x = 286,059,353,551.58 - Step 5: Solve for x
x = 286,059,353,551.58/611,138.67 - Step 6: Final answer
x = 468,076.02
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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.