Finding the Fourth Proportional to 1,019,811.21, 1,407,342.29 and 560,972.79
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Solution
The fourth proportional to 1,019,811.21, 1,407,342.29 and 560,972.79 is: 774,144.00
Step by Step Solution
- Step 1: Write the proportion equation
1,019,811.21 : 1,407,342.29 = 560,972.79 : x - Step 2: Convert to fraction form
1,019,811.21/1,407,342.29 = 560,972.79/x - Step 3: Cross multiply
1,019,811.21x = 1,407,342.29 × 560,972.79 - Step 4: Simplify right side
1,019,811.21x = 789,480,730,906.29 - Step 5: Solve for x
x = 789,480,730,906.29/1,019,811.21 - Step 6: Final answer
x = 774,144.00
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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.