Finding the Fourth Proportional to 1,883,867.68, 2,599,805.84 and 1,079,207.20
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Solution
The fourth proportional to 1,883,867.68, 2,599,805.84 and 1,079,207.20 is: 1,489,345.14
Step by Step Solution
- Step 1: Write the proportion equation
1,883,867.68 : 2,599,805.84 = 1,079,207.20 : x - Step 2: Convert to fraction form
1,883,867.68/2,599,805.84 = 1,079,207.20/x - Step 3: Cross multiply
1,883,867.68x = 2,599,805.84 × 1,079,207.20 - Step 4: Simplify right side
1,883,867.68x = 2,805,729,181,130.05 - Step 5: Solve for x
x = 2,805,729,181,130.05/1,883,867.68 - Step 6: Final answer
x = 1,489,345.14
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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.