Finding the Fourth Proportional to 1,943,396.55, 2,681,896.50 and 1,072,231.20
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Solution
The fourth proportional to 1,943,396.55, 2,681,896.50 and 1,072,231.20 is: 1,479,684.17
Step by Step Solution
- Step 1: Write the proportion equation
1,943,396.55 : 2,681,896.50 = 1,072,231.20 : x - Step 2: Convert to fraction form
1,943,396.55/2,681,896.50 = 1,072,231.20/x - Step 3: Cross multiply
1,943,396.55x = 2,681,896.50 × 1,072,231.20 - Step 4: Simplify right side
1,943,396.55x = 2,875,613,102,470.80 - Step 5: Solve for x
x = 2,875,613,102,470.80/1,943,396.55 - Step 6: Final answer
x = 1,479,684.17
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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.