Finding the Fourth Proportional to 912,745.92, 1,259,203.68 and 611,037.12
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Solution
The fourth proportional to 912,745.92, 1,259,203.68 and 611,037.12 is: 842,973.03
Step by Step Solution
- Step 1: Write the proportion equation
912,745.92 : 1,259,203.68 = 611,037.12 : x - Step 2: Convert to fraction form
912,745.92/1,259,203.68 = 611,037.12/x - Step 3: Cross multiply
912,745.92x = 1,259,203.68 × 611,037.12 - Step 4: Simplify right side
912,745.92x = 769,420,190,120.60 - Step 5: Solve for x
x = 769,420,190,120.60/912,745.92 - Step 6: Final answer
x = 842,973.03
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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.