Finding the Fourth Proportional to 809,904.21, 1,216,104.84 and 685,183.29
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Solution
The fourth proportional to 809,904.21, 1,216,104.84 and 685,183.29 is: 1,028,831.19
Step by Step Solution
- Step 1: Write the proportion equation
809,904.21 : 1,216,104.84 = 685,183.29 : x - Step 2: Convert to fraction form
809,904.21/1,216,104.84 = 685,183.29/x - Step 3: Cross multiply
809,904.21x = 1,216,104.84 × 685,183.29 - Step 4: Simplify right side
809,904.21x = 833,254,715,256.12 - Step 5: Solve for x
x = 833,254,715,256.12/809,904.21 - Step 6: Final answer
x = 1,028,831.19
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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.