Finding the Fourth Proportional to 527,486.34, 727,930.26 and 285,775.05
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Solution
The fourth proportional to 527,486.34, 727,930.26 and 285,775.05 is: 394,369.09
Step by Step Solution
- Step 1: Write the proportion equation
527,486.34 : 727,930.26 = 285,775.05 : x - Step 2: Convert to fraction form
527,486.34/727,930.26 = 285,775.05/x - Step 3: Cross multiply
527,486.34x = 727,930.26 × 285,775.05 - Step 4: Simplify right side
527,486.34x = 208,024,306,448.01 - Step 5: Solve for x
x = 208,024,306,448.01/527,486.34 - Step 6: Final answer
x = 394,369.09
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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.