Finding the Fourth Proportional to 772,767.15, 1,158,332.63 and 259,944.12
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Solution
The fourth proportional to 772,767.15, 1,158,332.63 and 259,944.12 is: 389,640.99
Step by Step Solution
- Step 1: Write the proportion equation
772,767.15 : 1,158,332.63 = 259,944.12 : x - Step 2: Convert to fraction form
772,767.15/1,158,332.63 = 259,944.12/x - Step 3: Cross multiply
772,767.15x = 1,158,332.63 × 259,944.12 - Step 4: Simplify right side
772,767.15x = 301,101,754,872.92 - Step 5: Solve for x
x = 301,101,754,872.92/772,767.15 - Step 6: Final answer
x = 389,640.99
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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.