Finding the Fourth Proportional to 568,122.61, 784,009.28 and 313,473.80
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Solution
The fourth proportional to 568,122.61, 784,009.28 and 313,473.80 is: 432,593.88
Step by Step Solution
- Step 1: Write the proportion equation
568,122.61 : 784,009.28 = 313,473.80 : x - Step 2: Convert to fraction form
568,122.61/784,009.28 = 313,473.80/x - Step 3: Cross multiply
568,122.61x = 784,009.28 × 313,473.80 - Step 4: Simplify right side
568,122.61x = 245,766,364,807.23 - Step 5: Solve for x
x = 245,766,364,807.23/568,122.61 - Step 6: Final answer
x = 432,593.88
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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.