Finding the Fourth Proportional to 838,309.80, 1,257,464.70 and 667,067.70
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Solution
The fourth proportional to 838,309.80, 1,257,464.70 and 667,067.70 is: 1,000,601.55
Step by Step Solution
- Step 1: Write the proportion equation
838,309.80 : 1,257,464.70 = 667,067.70 : x - Step 2: Convert to fraction form
838,309.80/1,257,464.70 = 667,067.70/x - Step 3: Cross multiply
838,309.80x = 1,257,464.70 × 667,067.70 - Step 4: Simplify right side
838,309.80x = 838,814,085,260.19 - Step 5: Solve for x
x = 838,814,085,260.19/838,309.80 - Step 6: Final answer
x = 1,000,601.55
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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.