Finding the Fourth Proportional to 753,189.96, 1,039,410.36 and 413,658.18
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Solution
The fourth proportional to 753,189.96, 1,039,410.36 and 413,658.18 is: 570,852.80
Step by Step Solution
- Step 1: Write the proportion equation
753,189.96 : 1,039,410.36 = 413,658.18 : x - Step 2: Convert to fraction form
753,189.96/1,039,410.36 = 413,658.18/x - Step 3: Cross multiply
753,189.96x = 1,039,410.36 × 413,658.18 - Step 4: Simplify right side
753,189.96x = 429,960,597,790.75 - Step 5: Solve for x
x = 429,960,597,790.75/753,189.96 - Step 6: Final answer
x = 570,852.80
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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.