Finding the Fourth Proportional to 758,908.45, 1,138,237.99 and 272,489.92
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Solution
The fourth proportional to 758,908.45, 1,138,237.99 and 272,489.92 is: 408,690.11
Step by Step Solution
- Step 1: Write the proportion equation
758,908.45 : 1,138,237.99 = 272,489.92 : x - Step 2: Convert to fraction form
758,908.45/1,138,237.99 = 272,489.92/x - Step 3: Cross multiply
758,908.45x = 1,138,237.99 × 272,489.92 - Step 4: Simplify right side
758,908.45x = 310,158,375,309.24 - Step 5: Solve for x
x = 310,158,375,309.24/758,908.45 - Step 6: Final answer
x = 408,690.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.