Finding the Fourth Proportional to 813,220.97, 1,121,876.93 and 490,828.01
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Solution
The fourth proportional to 813,220.97, 1,121,876.93 and 490,828.01 is: 677,120.54
Step by Step Solution
- Step 1: Write the proportion equation
813,220.97 : 1,121,876.93 = 490,828.01 : x - Step 2: Convert to fraction form
813,220.97/1,121,876.93 = 490,828.01/x - Step 3: Cross multiply
813,220.97x = 1,121,876.93 × 490,828.01 - Step 4: Simplify right side
813,220.97x = 550,648,621,016.81 - Step 5: Solve for x
x = 550,648,621,016.81/813,220.97 - Step 6: Final answer
x = 677,120.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.