Finding the Fourth Proportional to 823,682.28, 1,136,672.84 and 461,109.12
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Solution
The fourth proportional to 823,682.28, 1,136,672.84 and 461,109.12 is: 636,325.71
Step by Step Solution
- Step 1: Write the proportion equation
823,682.28 : 1,136,672.84 = 461,109.12 : x - Step 2: Convert to fraction form
823,682.28/1,136,672.84 = 461,109.12/x - Step 3: Cross multiply
823,682.28x = 1,136,672.84 × 461,109.12 - Step 4: Simplify right side
823,682.28x = 524,130,212,980.30 - Step 5: Solve for x
x = 524,130,212,980.30/823,682.28 - Step 6: Final answer
x = 636,325.71
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1.5x scale
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.