Finding the Fourth Proportional to 906,786.72, 1,251,365.58 and 498,879.81
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Solution
The fourth proportional to 906,786.72, 1,251,365.58 and 498,879.81 is: 688,454.09
Step by Step Solution
- Step 1: Write the proportion equation
906,786.72 : 1,251,365.58 = 498,879.81 : x - Step 2: Convert to fraction form
906,786.72/1,251,365.58 = 498,879.81/x - Step 3: Cross multiply
906,786.72x = 1,251,365.58 × 498,879.81 - Step 4: Simplify right side
906,786.72x = 624,281,022,790.94 - Step 5: Solve for x
x = 624,281,022,790.94/906,786.72 - Step 6: Final answer
x = 688,454.09
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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.