Finding the Fourth Proportional to 766,473.87, 1,057,734.99 and 417,612.54
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Solution
The fourth proportional to 766,473.87, 1,057,734.99 and 417,612.54 is: 576,305.88
Step by Step Solution
- Step 1: Write the proportion equation
766,473.87 : 1,057,734.99 = 417,612.54 : x - Step 2: Convert to fraction form
766,473.87/1,057,734.99 = 417,612.54/x - Step 3: Cross multiply
766,473.87x = 1,057,734.99 × 417,612.54 - Step 4: Simplify right side
766,473.87x = 441,723,395,820.78 - Step 5: Solve for x
x = 441,723,395,820.78/766,473.87 - Step 6: Final answer
x = 576,305.88
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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.