Finding the Fourth Proportional to 625,739.10, 863,521.84 and 339,259.31
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Solution
The fourth proportional to 625,739.10, 863,521.84 and 339,259.31 is: 468,178.87
Step by Step Solution
- Step 1: Write the proportion equation
625,739.10 : 863,521.84 = 339,259.31 : x - Step 2: Convert to fraction form
625,739.10/863,521.84 = 339,259.31/x - Step 3: Cross multiply
625,739.10x = 863,521.84 × 339,259.31 - Step 4: Simplify right side
625,739.10x = 292,957,823,608.33 - Step 5: Solve for x
x = 292,957,823,608.33/625,739.10 - Step 6: Final answer
x = 468,178.87
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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.