Finding the Fourth Proportional to 1,765,189.94, 2,435,767.19 and 990,643.12
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Solution
The fourth proportional to 1,765,189.94, 2,435,767.19 and 990,643.12 is: 1,366,978.11
Step by Step Solution
- Step 1: Write the proportion equation
1,765,189.94 : 2,435,767.19 = 990,643.12 : x - Step 2: Convert to fraction form
1,765,189.94/2,435,767.19 = 990,643.12/x - Step 3: Cross multiply
1,765,189.94x = 2,435,767.19 × 990,643.12 - Step 4: Simplify right side
1,765,189.94x = 2,412,976,008,695.23 - Step 5: Solve for x
x = 2,412,976,008,695.23/1,765,189.94 - Step 6: Final answer
x = 1,366,978.11
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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.