Finding the Fourth Proportional to 820,796.15, 1,132,651.55 and 458,242.99
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Solution
The fourth proportional to 820,796.15, 1,132,651.55 and 458,242.99 is: 632,349.01
Step by Step Solution
- Step 1: Write the proportion equation
820,796.15 : 1,132,651.55 = 458,242.99 : x - Step 2: Convert to fraction form
820,796.15/1,132,651.55 = 458,242.99/x - Step 3: Cross multiply
820,796.15x = 1,132,651.55 × 458,242.99 - Step 4: Simplify right side
820,796.15x = 519,029,631,214.11 - Step 5: Solve for x
x = 519,029,631,214.11/820,796.15 - Step 6: Final answer
x = 632,349.01
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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.