Finding the Fourth Proportional to 520,457.96, 780,686.94 and 126,473.96
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Solution
The fourth proportional to 520,457.96, 780,686.94 and 126,473.96 is: 189,710.94
Step by Step Solution
- Step 1: Write the proportion equation
520,457.96 : 780,686.94 = 126,473.96 : x - Step 2: Convert to fraction form
520,457.96/780,686.94 = 126,473.96/x - Step 3: Cross multiply
520,457.96x = 780,686.94 × 126,473.96 - Step 4: Simplify right side
520,457.96x = 98,736,568,822.08 - Step 5: Solve for x
x = 98,736,568,822.08/520,457.96 - Step 6: Final answer
x = 189,710.94
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.