Finding the Fourth Proportional to 520,409.06, 718,165.68 and 290,974.55
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Solution
The fourth proportional to 520,409.06, 718,165.68 and 290,974.55 is: 401,545.54
Step by Step Solution
- Step 1: Write the proportion equation
520,409.06 : 718,165.68 = 290,974.55 : x - Step 2: Convert to fraction form
520,409.06/718,165.68 = 290,974.55/x - Step 3: Cross multiply
520,409.06x = 718,165.68 × 290,974.55 - Step 4: Simplify right side
520,409.06x = 208,967,935,563.44 - Step 5: Solve for x
x = 208,967,935,563.44/520,409.06 - Step 6: Final answer
x = 401,545.54
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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.