Finding the Fourth Proportional to 603,866.14, 833,520.99 and 389,005.54
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Solution
The fourth proportional to 603,866.14, 833,520.99 and 389,005.54 is: 536,947.28
Step by Step Solution
- Step 1: Write the proportion equation
603,866.14 : 833,520.99 = 389,005.54 : x - Step 2: Convert to fraction form
603,866.14/833,520.99 = 389,005.54/x - Step 3: Cross multiply
603,866.14x = 833,520.99 × 389,005.54 - Step 4: Simplify right side
603,866.14x = 324,244,282,816.29 - Step 5: Solve for x
x = 324,244,282,816.29/603,866.14 - Step 6: Final answer
x = 536,947.28
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1.5x scale
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.