Finding the Fourth Proportional to 906,089.13, 1,250,406.21 and 498,216.62
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Solution
The fourth proportional to 906,089.13, 1,250,406.21 and 498,216.62 is: 687,540.69
Step by Step Solution
- Step 1: Write the proportion equation
906,089.13 : 1,250,406.21 = 498,216.62 : x - Step 2: Convert to fraction form
906,089.13/1,250,406.21 = 498,216.62/x - Step 3: Cross multiply
906,089.13x = 1,250,406.21 × 498,216.62 - Step 4: Simplify right side
906,089.13x = 622,973,149,321.18 - Step 5: Solve for x
x = 622,973,149,321.18/906,089.13 - Step 6: Final answer
x = 687,540.69
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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.