Finding the Fourth Proportional to 498,053.74, 687,310.98 and 283,193.80
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Solution
The fourth proportional to 498,053.74, 687,310.98 and 283,193.80 is: 390,805.63
Step by Step Solution
- Step 1: Write the proportion equation
498,053.74 : 687,310.98 = 283,193.80 : x - Step 2: Convert to fraction form
498,053.74/687,310.98 = 283,193.80/x - Step 3: Cross multiply
498,053.74x = 687,310.98 × 283,193.80 - Step 4: Simplify right side
498,053.74x = 194,642,206,489.65 - Step 5: Solve for x
x = 194,642,206,489.65/498,053.74 - Step 6: Final answer
x = 390,805.63
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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.