Finding the Fourth Proportional to 1,428,113.16, 2,142,177.08 and 481,492.08
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Solution
The fourth proportional to 1,428,113.16, 2,142,177.08 and 481,492.08 is: 722,240.59
Step by Step Solution
- Step 1: Write the proportion equation
1,428,113.16 : 2,142,177.08 = 481,492.08 : x - Step 2: Convert to fraction form
1,428,113.16/2,142,177.08 = 481,492.08/x - Step 3: Cross multiply
1,428,113.16x = 2,142,177.08 × 481,492.08 - Step 4: Simplify right side
1,428,113.16x = 1,031,441,295,570.07 - Step 5: Solve for x
x = 1,031,441,295,570.07/1,428,113.16 - Step 6: Final answer
x = 722,240.59
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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.