Finding the Fourth Proportional to 1,988,303.76, 2,743,891.20 and 1,128,887.28
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Solution
The fourth proportional to 1,988,303.76, 2,743,891.20 and 1,128,887.28 is: 1,557,882.62
Step by Step Solution
- Step 1: Write the proportion equation
1,988,303.76 : 2,743,891.20 = 1,128,887.28 : x - Step 2: Convert to fraction form
1,988,303.76/2,743,891.20 = 1,128,887.28/x - Step 3: Cross multiply
1,988,303.76x = 2,743,891.20 × 1,128,887.28 - Step 4: Simplify right side
1,988,303.76x = 3,097,543,873,383.94 - Step 5: Solve for x
x = 3,097,543,873,383.94/1,988,303.76 - Step 6: Final answer
x = 1,557,882.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.