Finding the Fourth Proportional to 519,438.70, 729,313.70 and 519,438.70
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Solution
The fourth proportional to 519,438.70, 729,313.70 and 519,438.70 is: 729,313.70
Step by Step Solution
- Step 1: Write the proportion equation
519,438.70 : 729,313.70 = 519,438.70 : x - Step 2: Convert to fraction form
519,438.70/729,313.70 = 519,438.70/x - Step 3: Cross multiply
519,438.70x = 729,313.70 × 519,438.70 - Step 4: Simplify right side
519,438.70x = 378,833,760,220.19 - Step 5: Solve for x
x = 378,833,760,220.19/519,438.70 - Step 6: Final answer
x = 729,313.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.