Finding the Fourth Proportional to 790,067.70, 1,090,292.70 and 445,976.06
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Solution
The fourth proportional to 790,067.70, 1,090,292.70 and 445,976.06 is: 615,446.55
Step by Step Solution
- Step 1: Write the proportion equation
790,067.70 : 1,090,292.70 = 445,976.06 : x - Step 2: Convert to fraction form
790,067.70/1,090,292.70 = 445,976.06/x - Step 3: Cross multiply
790,067.70x = 1,090,292.70 × 445,976.06 - Step 4: Simplify right side
790,067.70x = 486,244,442,592.76 - Step 5: Solve for x
x = 486,244,442,592.76/790,067.70 - Step 6: Final answer
x = 615,446.55
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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.