Finding the Fourth Proportional to 430,319.91, 644,889.34 and 272,265.42
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Solution
The fourth proportional to 430,319.91, 644,889.34 and 272,265.42 is: 408,024.50
Step by Step Solution
- Step 1: Write the proportion equation
430,319.91 : 644,889.34 = 272,265.42 : x - Step 2: Convert to fraction form
430,319.91/644,889.34 = 272,265.42/x - Step 3: Cross multiply
430,319.91x = 644,889.34 × 272,265.42 - Step 4: Simplify right side
430,319.91x = 175,581,067,008.62 - Step 5: Solve for x
x = 175,581,067,008.62/430,319.91 - Step 6: Final answer
x = 408,024.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.