Finding the Fourth Proportional to 670,486.14, 925,138.35 and 376,145.82
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Solution
The fourth proportional to 670,486.14, 925,138.35 and 376,145.82 is: 519,006.89
Step by Step Solution
- Step 1: Write the proportion equation
670,486.14 : 925,138.35 = 376,145.82 : x - Step 2: Convert to fraction form
670,486.14/925,138.35 = 376,145.82/x - Step 3: Cross multiply
670,486.14x = 925,138.35 × 376,145.82 - Step 4: Simplify right side
670,486.14x = 347,986,923,274.20 - Step 5: Solve for x
x = 347,986,923,274.20/670,486.14 - Step 6: Final answer
x = 519,006.89
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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.