Finding the Fourth Proportional to 789,423.36, 1,089,405.00 and 426,847.12
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Solution
The fourth proportional to 789,423.36, 1,089,405.00 and 426,847.12 is: 589,049.44
Step by Step Solution
- Step 1: Write the proportion equation
789,423.36 : 1,089,405.00 = 426,847.12 : x - Step 2: Convert to fraction form
789,423.36/1,089,405.00 = 426,847.12/x - Step 3: Cross multiply
789,423.36x = 1,089,405.00 × 426,847.12 - Step 4: Simplify right side
789,423.36x = 465,009,389,726.03 - Step 5: Solve for x
x = 465,009,389,726.03/789,423.36 - Step 6: Final answer
x = 589,049.44
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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.