Finding the Fourth Proportional to 813,162.12, 1,122,188.33 and 450,552.06
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Solution
The fourth proportional to 813,162.12, 1,122,188.33 and 450,552.06 is: 621,775.47
Step by Step Solution
- Step 1: Write the proportion equation
813,162.12 : 1,122,188.33 = 450,552.06 : x - Step 2: Convert to fraction form
813,162.12/1,122,188.33 = 450,552.06/x - Step 3: Cross multiply
813,162.12x = 1,122,188.33 × 450,552.06 - Step 4: Simplify right side
813,162.12x = 505,604,261,536.70 - Step 5: Solve for x
x = 505,604,261,536.70/813,162.12 - Step 6: Final answer
x = 621,775.47
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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.