Finding the Fourth Proportional to 431,390.20, 595,362.98 and 259,364.42
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Solution
The fourth proportional to 431,390.20, 595,362.98 and 259,364.42 is: 357,949.66
Step by Step Solution
- Step 1: Write the proportion equation
431,390.20 : 595,362.98 = 259,364.42 : x - Step 2: Convert to fraction form
431,390.20/595,362.98 = 259,364.42/x - Step 3: Cross multiply
431,390.20x = 595,362.98 × 259,364.42 - Step 4: Simplify right side
431,390.20x = 154,415,973,997.17 - Step 5: Solve for x
x = 154,415,973,997.17/431,390.20 - Step 6: Final answer
x = 357,949.66
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1.5x scale
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.