Finding the Fourth Proportional to 420,251.72, 579,782.30 and 258,826.62
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Solution
The fourth proportional to 420,251.72, 579,782.30 and 258,826.62 is: 357,079.07
Step by Step Solution
- Step 1: Write the proportion equation
420,251.72 : 579,782.30 = 258,826.62 : x - Step 2: Convert to fraction form
420,251.72/579,782.30 = 258,826.62/x - Step 3: Cross multiply
420,251.72x = 579,782.30 × 258,826.62 - Step 4: Simplify right side
420,251.72x = 150,063,093,044.83 - Step 5: Solve for x
x = 150,063,093,044.83/420,251.72 - Step 6: Final answer
x = 357,079.07
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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.