Finding the Fourth Proportional to 823,526.80, 1,136,455.25 and 455,968.80
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Solution
The fourth proportional to 823,526.80, 1,136,455.25 and 455,968.80 is: 629,230.45
Step by Step Solution
- Step 1: Write the proportion equation
823,526.80 : 1,136,455.25 = 455,968.80 : x - Step 2: Convert to fraction form
823,526.80/1,136,455.25 = 455,968.80/x - Step 3: Cross multiply
823,526.80x = 1,136,455.25 × 455,968.80 - Step 4: Simplify right side
823,526.80x = 518,188,134,316.36 - Step 5: Solve for x
x = 518,188,134,316.36/823,526.80 - Step 6: Final answer
x = 629,230.45
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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.