Finding the Fourth Proportional to 2,986,396.56, 4,121,582.40 and 1,885,427.28
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Solution
The fourth proportional to 2,986,396.56, 4,121,582.40 and 1,885,427.28 is: 2,602,113.86
Step by Step Solution
- Step 1: Write the proportion equation
2,986,396.56 : 4,121,582.40 = 1,885,427.28 : x - Step 2: Convert to fraction form
2,986,396.56/4,121,582.40 = 1,885,427.28/x - Step 3: Cross multiply
2,986,396.56x = 4,121,582.40 × 1,885,427.28 - Step 4: Simplify right side
2,986,396.56x = 7,770,943,893,727.87 - Step 5: Solve for x
x = 7,770,943,893,727.87/2,986,396.56 - Step 6: Final answer
x = 2,602,113.86
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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.