Finding the Fourth Proportional to 683,913.81, 943,771.70 and 377,974.38
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Solution
The fourth proportional to 683,913.81, 943,771.70 and 377,974.38 is: 521,588.42
Step by Step Solution
- Step 1: Write the proportion equation
683,913.81 : 943,771.70 = 377,974.38 : x - Step 2: Convert to fraction form
683,913.81/943,771.70 = 377,974.38/x - Step 3: Cross multiply
683,913.81x = 943,771.70 × 377,974.38 - Step 4: Simplify right side
683,913.81x = 356,721,527,653.13 - Step 5: Solve for x
x = 356,721,527,653.13/683,913.81 - Step 6: Final answer
x = 521,588.42
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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.