Finding the Fourth Proportional to 527,703.24, 728,228.64 and 285,991.75
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Solution
The fourth proportional to 527,703.24, 728,228.64 and 285,991.75 is: 394,667.62
Step by Step Solution
- Step 1: Write the proportion equation
527,703.24 : 728,228.64 = 285,991.75 : x - Step 2: Convert to fraction form
527,703.24/728,228.64 = 285,991.75/x - Step 3: Cross multiply
527,703.24x = 728,228.64 × 285,991.75 - Step 4: Simplify right side
527,703.24x = 208,267,383,153.72 - Step 5: Solve for x
x = 208,267,383,153.72/527,703.24 - Step 6: Final answer
x = 394,667.62
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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.