Finding the Fourth Proportional to 1,121,122.08, 1,680,683.16 and 410,984.37
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Solution
The fourth proportional to 1,121,122.08, 1,680,683.16 and 410,984.37 is: 616,109.99
Step by Step Solution
- Step 1: Write the proportion equation
1,121,122.08 : 1,680,683.16 = 410,984.37 : x - Step 2: Convert to fraction form
1,121,122.08/1,680,683.16 = 410,984.37/x - Step 3: Cross multiply
1,121,122.08x = 1,680,683.16 × 410,984.37 - Step 4: Simplify right side
1,121,122.08x = 690,734,509,682.21 - Step 5: Solve for x
x = 690,734,509,682.21/1,121,122.08 - Step 6: Final answer
x = 616,109.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.