Finding the Fourth Proportional to 790,614.24, 1,186,143.08 and 317,631.76
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Solution
The fourth proportional to 790,614.24, 1,186,143.08 and 317,631.76 is: 476,536.72
Step by Step Solution
- Step 1: Write the proportion equation
790,614.24 : 1,186,143.08 = 317,631.76 : x - Step 2: Convert to fraction form
790,614.24/1,186,143.08 = 317,631.76/x - Step 3: Cross multiply
790,614.24x = 1,186,143.08 × 317,631.76 - Step 4: Simplify right side
790,614.24x = 376,756,714,112.22 - Step 5: Solve for x
x = 376,756,714,112.22/790,614.24 - Step 6: Final answer
x = 476,536.72
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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.