Finding the Fourth Proportional to 825,291.12, 1,238,293.02 and 446,478.68
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Solution
The fourth proportional to 825,291.12, 1,238,293.02 and 446,478.68 is: 669,910.80
Step by Step Solution
- Step 1: Write the proportion equation
825,291.12 : 1,238,293.02 = 446,478.68 : x - Step 2: Convert to fraction form
825,291.12/1,238,293.02 = 446,478.68/x - Step 3: Cross multiply
825,291.12x = 1,238,293.02 × 446,478.68 - Step 4: Simplify right side
825,291.12x = 552,871,433,022.81 - Step 5: Solve for x
x = 552,871,433,022.81/825,291.12 - Step 6: Final answer
x = 669,910.80
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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.