Finding the Fourth Proportional to 861,708.80, 1,292,563.20 and 808,564.70
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Solution
The fourth proportional to 861,708.80, 1,292,563.20 and 808,564.70 is: 1,212,847.05
Step by Step Solution
- Step 1: Write the proportion equation
861,708.80 : 1,292,563.20 = 808,564.70 : x - Step 2: Convert to fraction form
861,708.80/1,292,563.20 = 808,564.70/x - Step 3: Cross multiply
861,708.80x = 1,292,563.20 × 808,564.70 - Step 4: Simplify right side
861,708.80x = 1,045,120,976,039.04 - Step 5: Solve for x
x = 1,045,120,976,039.04/861,708.80 - Step 6: Final answer
x = 1,212,847.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.