Finding the Fourth Proportional to 790,279.36, 1,185,542.08 and 257,676.80
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Solution
The fourth proportional to 790,279.36, 1,185,542.08 and 257,676.80 is: 386,555.32
Step by Step Solution
- Step 1: Write the proportion equation
790,279.36 : 1,185,542.08 = 257,676.80 : x - Step 2: Convert to fraction form
790,279.36/1,185,542.08 = 257,676.80/x - Step 3: Cross multiply
790,279.36x = 1,185,542.08 × 257,676.80 - Step 4: Simplify right side
790,279.36x = 305,486,689,439.74 - Step 5: Solve for x
x = 305,486,689,439.74/790,279.36 - Step 6: Final answer
x = 386,555.32
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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.