Finding the Fourth Proportional to 813,449.07, 1,122,626.97 and 450,986.67
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Solution
The fourth proportional to 813,449.07, 1,122,626.97 and 450,986.67 is: 622,398.89
Step by Step Solution
- Step 1: Write the proportion equation
813,449.07 : 1,122,626.97 = 450,986.67 : x - Step 2: Convert to fraction form
813,449.07/1,122,626.97 = 450,986.67/x - Step 3: Cross multiply
813,449.07x = 1,122,626.97 × 450,986.67 - Step 4: Simplify right side
813,449.07x = 506,289,798,852.49 - Step 5: Solve for x
x = 506,289,798,852.49/813,449.07 - Step 6: Final answer
x = 622,398.89
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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.