Finding the Fourth Proportional to 613,905.80, 920,858.70 and 613,905.80
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Solution
The fourth proportional to 613,905.80, 920,858.70 and 613,905.80 is: 920,858.70
Step by Step Solution
- Step 1: Write the proportion equation
613,905.80 : 920,858.70 = 613,905.80 : x - Step 2: Convert to fraction form
613,905.80/920,858.70 = 613,905.80/x - Step 3: Cross multiply
613,905.80x = 920,858.70 × 613,905.80 - Step 4: Simplify right side
613,905.80x = 565,320,496,910.46 - Step 5: Solve for x
x = 565,320,496,910.46/613,905.80 - Step 6: Final answer
x = 920,858.70
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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.