Finding the Fourth Proportional to 823,998.63, 1,137,024.12 and 461,372.07
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Solution
The fourth proportional to 823,998.63, 1,137,024.12 and 461,372.07 is: 636,640.83
Step by Step Solution
- Step 1: Write the proportion equation
823,998.63 : 1,137,024.12 = 461,372.07 : x - Step 2: Convert to fraction form
823,998.63/1,137,024.12 = 461,372.07/x - Step 3: Cross multiply
823,998.63x = 1,137,024.12 × 461,372.07 - Step 4: Simplify right side
823,998.63x = 524,591,171,884.33 - Step 5: Solve for x
x = 524,591,171,884.33/823,998.63 - Step 6: Final answer
x = 636,640.83
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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.