Finding the Fourth Proportional to 1,275,107.10, 1,759,584.63 and 702,040.20
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Solution
The fourth proportional to 1,275,107.10, 1,759,584.63 and 702,040.20 is: 968,780.70
Step by Step Solution
- Step 1: Write the proportion equation
1,275,107.10 : 1,759,584.63 = 702,040.20 : x - Step 2: Convert to fraction form
1,275,107.10/1,759,584.63 = 702,040.20/x - Step 3: Cross multiply
1,275,107.10x = 1,759,584.63 × 702,040.20 - Step 4: Simplify right side
1,275,107.10x = 1,235,299,145,562.13 - Step 5: Solve for x
x = 1,235,299,145,562.13/1,275,107.10 - Step 6: Final answer
x = 968,780.70
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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.