Finding the Fourth Proportional to 911,993.99, 1,257,714.81 and 548,787.15
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Solution
The fourth proportional to 911,993.99, 1,257,714.81 and 548,787.15 is: 756,822.67
Step by Step Solution
- Step 1: Write the proportion equation
911,993.99 : 1,257,714.81 = 548,787.15 : x - Step 2: Convert to fraction form
911,993.99/1,257,714.81 = 548,787.15/x - Step 3: Cross multiply
911,993.99x = 1,257,714.81 × 548,787.15 - Step 4: Simplify right side
911,993.99x = 690,217,726,092.69 - Step 5: Solve for x
x = 690,217,726,092.69/911,993.99 - Step 6: Final answer
x = 756,822.67
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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.