Finding the Fourth Proportional to 430,311.58, 644,876.88 and 272,257.09
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Solution
The fourth proportional to 430,311.58, 644,876.88 and 272,257.09 is: 408,012.03
Step by Step Solution
- Step 1: Write the proportion equation
430,311.58 : 644,876.88 = 272,257.09 : x - Step 2: Convert to fraction form
430,311.58/644,876.88 = 272,257.09/x - Step 3: Cross multiply
430,311.58x = 644,876.88 × 272,257.09 - Step 4: Simplify right side
430,311.58x = 175,572,302,542.21 - Step 5: Solve for x
x = 175,572,302,542.21/430,311.58 - Step 6: Final answer
x = 408,012.03
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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.