Finding the Fourth Proportional to 498,136.43, 687,424.73 and 283,276.44
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Solution
The fourth proportional to 498,136.43, 687,424.73 and 283,276.44 is: 390,919.47
Step by Step Solution
- Step 1: Write the proportion equation
498,136.43 : 687,424.73 = 283,276.44 : x - Step 2: Convert to fraction form
498,136.43/687,424.73 = 283,276.44/x - Step 3: Cross multiply
498,136.43x = 687,424.73 × 283,276.44 - Step 4: Simplify right side
498,136.43x = 194,731,228,865.98 - Step 5: Solve for x
x = 194,731,228,865.98/498,136.43 - Step 6: Final answer
x = 390,919.47
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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.