Finding the Fourth Proportional to 620,653.80, 930,980.70 and 305,725.80
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Solution
The fourth proportional to 620,653.80, 930,980.70 and 305,725.80 is: 458,588.70
Step by Step Solution
- Step 1: Write the proportion equation
620,653.80 : 930,980.70 = 305,725.80 : x - Step 2: Convert to fraction form
620,653.80/930,980.70 = 305,725.80/x - Step 3: Cross multiply
620,653.80x = 930,980.70 × 305,725.80 - Step 4: Simplify right side
620,653.80x = 284,624,819,292.06 - Step 5: Solve for x
x = 284,624,819,292.06/620,653.80 - Step 6: Final answer
x = 458,588.70
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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.