Finding the Fourth Proportional to 527,573.46, 728,048.85 and 285,855.99
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Solution
The fourth proportional to 527,573.46, 728,048.85 and 285,855.99 is: 394,479.90
Step by Step Solution
- Step 1: Write the proportion equation
527,573.46 : 728,048.85 = 285,855.99 : x - Step 2: Convert to fraction form
527,573.46/728,048.85 = 285,855.99/x - Step 3: Cross multiply
527,573.46x = 728,048.85 × 285,855.99 - Step 4: Simplify right side
527,573.46x = 208,117,124,785.11 - Step 5: Solve for x
x = 208,117,124,785.11/527,573.46 - Step 6: Final answer
x = 394,479.90
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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.