Finding the Fourth Proportional to 527,645.99, 728,149.64 and 285,934.50
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Solution
The fourth proportional to 527,645.99, 728,149.64 and 285,934.50 is: 394,588.62
Step by Step Solution
- Step 1: Write the proportion equation
527,645.99 : 728,149.64 = 285,934.50 : x - Step 2: Convert to fraction form
527,645.99/728,149.64 = 285,934.50/x - Step 3: Cross multiply
527,645.99x = 728,149.64 × 285,934.50 - Step 4: Simplify right side
527,645.99x = 208,203,101,808.91 - Step 5: Solve for x
x = 208,203,101,808.91/527,645.99 - Step 6: Final answer
x = 394,588.62
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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.