Finding the Fourth Proportional to 856,691.20, 1,182,234.07 and 469,521.99
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Solution
The fourth proportional to 856,691.20, 1,182,234.07 and 469,521.99 is: 647,940.47
Step by Step Solution
- Step 1: Write the proportion equation
856,691.20 : 1,182,234.07 = 469,521.99 : x - Step 2: Convert to fraction form
856,691.20/1,182,234.07 = 469,521.99/x - Step 3: Cross multiply
856,691.20x = 1,182,234.07 × 469,521.99 - Step 4: Simplify right side
856,691.20x = 555,084,896,443.85 - Step 5: Solve for x
x = 555,084,896,443.85/856,691.20 - Step 6: Final answer
x = 647,940.47
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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.