Finding the Fourth Proportional to 2,143,248.36, 3,215,432.74 and 1,243,825.48
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Solution
The fourth proportional to 2,143,248.36, 3,215,432.74 and 1,243,825.48 is: 1,866,063.33
Step by Step Solution
- Step 1: Write the proportion equation
2,143,248.36 : 3,215,432.74 = 1,243,825.48 : x - Step 2: Convert to fraction form
2,143,248.36/3,215,432.74 = 1,243,825.48/x - Step 3: Cross multiply
2,143,248.36x = 3,215,432.74 × 1,243,825.48 - Step 4: Simplify right side
2,143,248.36x = 3,999,437,171,238.22 - Step 5: Solve for x
x = 3,999,437,171,238.22/2,143,248.36 - Step 6: Final answer
x = 1,866,063.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.