Finding the Fourth Proportional to 813,206.13, 1,122,231.05 and 450,636
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Solution
The fourth proportional to 813,206.13, 1,122,231.05 and 450,636 is: 621,881.33
Step by Step Solution
- Step 1: Write the proportion equation
813,206.13 : 1,122,231.05 = 450,636 : x - Step 2: Convert to fraction form
813,206.13/1,122,231.05 = 450,636/x - Step 3: Cross multiply
813,206.13x = 1,122,231.05 × 450,636 - Step 4: Simplify right side
813,206.13x = 505,717,709,194.62 - Step 5: Solve for x
x = 505,717,709,194.62/813,206.13 - Step 6: Final answer
x = 621,881.33
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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.