Finding the Fourth Proportional to 2,438,839.26, 3,643,424.06 and 1,578,905.19
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Solution
The fourth proportional to 2,438,839.26, 3,643,424.06 and 1,578,905.19 is: 2,358,753.71
Step by Step Solution
- Step 1: Write the proportion equation
2,438,839.26 : 3,643,424.06 = 1,578,905.19 : x - Step 2: Convert to fraction form
2,438,839.26/3,643,424.06 = 1,578,905.19/x - Step 3: Cross multiply
2,438,839.26x = 3,643,424.06 × 1,578,905.19 - Step 4: Simplify right side
2,438,839.26x = 5,752,621,149,810.35 - Step 5: Solve for x
x = 5,752,621,149,810.35/2,438,839.26 - Step 6: Final answer
x = 2,358,753.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.