Finding the Fourth Proportional to 868,705.57, 1,198,812.88 and 486,735.08
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Solution
The fourth proportional to 868,705.57, 1,198,812.88 and 486,735.08 is: 671,693.96
Step by Step Solution
- Step 1: Write the proportion equation
868,705.57 : 1,198,812.88 = 486,735.08 : x - Step 2: Convert to fraction form
868,705.57/1,198,812.88 = 486,735.08/x - Step 3: Cross multiply
868,705.57x = 1,198,812.88 × 486,735.08 - Step 4: Simplify right side
868,705.57x = 583,504,283,051.83 - Step 5: Solve for x
x = 583,504,283,051.83/868,705.57 - Step 6: Final answer
x = 671,693.96
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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.