Finding the Fourth Proportional to 813,358.99, 1,122,435.49 and 450,806.23
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Solution
The fourth proportional to 813,358.99, 1,122,435.49 and 450,806.23 is: 622,112.64
Step by Step Solution
- Step 1: Write the proportion equation
813,358.99 : 1,122,435.49 = 450,806.23 : x - Step 2: Convert to fraction form
813,358.99/1,122,435.49 = 450,806.23/x - Step 3: Cross multiply
813,358.99x = 1,122,435.49 × 450,806.23 - Step 4: Simplify right side
813,358.99x = 506,000,909,411.07 - Step 5: Solve for x
x = 506,000,909,411.07/813,358.99 - Step 6: Final answer
x = 622,112.64
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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.