Finding the Fourth Proportional to 823,366.69, 1,136,221.58 and 455,860.17
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Solution
The fourth proportional to 823,366.69, 1,136,221.58 and 455,860.17 is: 629,073.50
Step by Step Solution
- Step 1: Write the proportion equation
823,366.69 : 1,136,221.58 = 455,860.17 : x - Step 2: Convert to fraction form
823,366.69/1,136,221.58 = 455,860.17/x - Step 3: Cross multiply
823,366.69x = 1,136,221.58 × 455,860.17 - Step 4: Simplify right side
823,366.69x = 517,958,162,616.47 - Step 5: Solve for x
x = 517,958,162,616.47/823,366.69 - Step 6: Final answer
x = 629,073.50
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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.